Table:
0
A
B
C
D
E
F
1
mountain id
name
height
prominence
range
country
2
1
Kibo (Uhuru Pk)
5895
5885
Kilimanjaro
Tanzania
3
2
Mount Kenya (Batian)
5199
3825
Mount Kenya
Kenya
4
3
Mawenzi (Hans Meyer Pk)
5148
850
Kilimanjaro
Tanzania
5
4
Ngaliema / Mt Stanley (Margherita Pk)
5109
3951
Rwenzori
DR Congo Uganda
6
5
Mount Kenya (Lenana)
4985
130
Mount Kenya
Kenya
7
6
Ngaliema / Mt Stanley (Savoia Pk)
4977
110
Rwenzori
Uganda
8
7
Duwoni / Mt Speke (Vittorio Emanuele Pk)
4890
720
Rwenzori
Uganda

Questions and formulas:
Question: What are the names of mountains in ascending alphabetical order?
Formula: SORTBY(B1,B1,1)
Formula2: SORTBY(B2:B8,B2:B8,1)
Level: easy
Question: Give the names of mountains in alphabetical order.
Formula: SORTBY(B1,B1,1)
Formula2: SORTBY(B2:B8,B2:B8,1)
Level: easy
Question: What are the countries of mountains with height bigger than 5000?
Formula: FILTER(F1,C1>5000)
Formula2: FILTER(F2:F8,C2:C8>5000)
Level: easy
Question: Return the countries of the mountains that have a height larger than 5000.
Formula: FILTER(F1,C1>5000)
Formula2: FILTER(F2:F8,C2:C8>5000)
Level: easy
Question: What is the name of the highest mountain?
Formula: LET(a,SORTBY(B1,C1,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Formula2: LET(a,SORTBY(B2:B8,C2:C8,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Level: hard
Question: Return the name of the mountain with the greatest height.
Formula: LET(a,SORTBY(B1,C1,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Formula2: LET(a,SORTBY(B2:B8,C2:C8,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Level: hard
Question: List the distinct ranges of the mountains with the top 3 prominence.
Formula: LET(a,SORTBY(UNIQUE(E1),D1,-1),FILTER(a,SEQUENCE(ROWS(a))<=3))
Formula2: LET(a,SORTBY(UNIQUE(E2:E8),D2:D8,-1),FILTER(a,SEQUENCE(ROWS(a))<=3))
Level: hard
Question: What are the different ranges of the 3 mountains with the highest prominence?
Formula: LET(a,SORTBY(UNIQUE(E1),D1,-1),FILTER(a,SEQUENCE(ROWS(a))<=3))
Formula2: LET(a,SORTBY(UNIQUE(E2:E8),D2:D8,-1),FILTER(a,SEQUENCE(ROWS(a))<=3))
Level: hard
Question: List the countries that have more than one mountain.
Formula: LET(query1,SUMMARIZE(F1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Formula2: LET(query1,SUMMARIZE(F2:F8,SUMX(A2:A8)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Level: hard
Question: Which countries have more than one mountain?
Formula: LET(query1,SUMMARIZE(F1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Formula2: LET(query1,SUMMARIZE(F2:F8,SUMX(A2:A8)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Level: hard
Question: Show the range that has the most number of mountains.
Formula: TAKE(SORT(SUMMARIZE(E1,SUMX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(E2:E8,SUMX(A2:A8)), 2, -1), 1)
Level: hard
Question: Which range contains the most mountains?
Formula: TAKE(SORT(SUMMARIZE(E1,SUMX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(E2:E8,SUMX(A2:A8)), 2, -1), 1)
Level: hard
Question: Show the names of mountains with height more than 5000 or prominence more than 1000.
Formula: FILTER(B1,(C1>5000)+(D1>1000))
Formula2: FILTER(B2:B8,(C2:C8>5000)+(D2:D8>1000))
Level: easy
Question: What are the names of mountains that have a height of over 5000 or a prominence of over 1000?
Formula: FILTER(B1,(C1>5000)+(D1>1000))
Formula2: FILTER(B2:B8,(C2:C8>5000)+(D2:D8>1000))
Level: easy
Question: mountain IDs in numerical order and their corresponding names.
Formula: SORT(UNIQUE(HSTACK(B1,A1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(B2:B8,A2:A8)), 2, 1)
Level: medium
Question: The id for each mountain in numerical order and its corresponding name.
Formula: SORT(UNIQUE(HSTACK(B1,A1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(B2:B8,A2:A8)), 2, 1)
Level: medium
Question: Ids and countries for mountains taller than 5000.
Formula: LET(query1,SUMMARIZE(HSTACK(F1,A1),SUMX(C1)),FILTER(query1,CHOOSECOLS(query1,3)>5000))
Formula2: LET(query1,SUMMARIZE(HSTACK(F2:F8,A2:A8),SUMX(C2:C8)),FILTER(query1,CHOOSECOLS(query1,3)>5000))
Level: hard
Question: Countries and ids for mountains taller than 5000.
Formula: LET(query1,SUMMARIZE(HSTACK(F1,A1),SUMX(C1)),FILTER(query1,CHOOSECOLS(query1,3)>5000))
Formula2: LET(query1,SUMMARIZE(HSTACK(F2:F8,A2:A8),SUMX(C2:C8)),FILTER(query1,CHOOSECOLS(query1,3)>5000))
Level: hard
Question: name of the highest mountain
Formula: LET(a,HSTACK(B1,A1),b,A1,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A1,SUMX(C1)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: LET(a,HSTACK(B2:B8,A2:A8),b,A2:A8,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A2:A8,SUMX(C2:C8)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: name of the highest mountain.
Formula: LET(a,HSTACK(B1,A1),b,A1,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A1,SUMX(C1)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: LET(a,HSTACK(B2:B8,A2:A8),b,A2:A8,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A2:A8,SUMX(C2:C8)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: Ranges for 3 mountains with highest prominence.
Formula: LET(a,HSTACK(E1,A1),b,A1,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A1,SUMX(D1)), 2, -1), 3),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: LET(a,HSTACK(E2:E8,A2:A8),b,A2:A8,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A2:A8,SUMX(D2:D8)), 2, -1), 3),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: the ranges of the mountains with top 3 highest prominences 
Formula: LET(a,HSTACK(E1,A1),b,A1,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A1,MAXX(D1)), 2, -1), 3),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: LET(a,HSTACK(E2:E8,A2:A8),b,A2:A8,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A2:A8,MAXX(D2:D8)), 2, -1), 3),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: countries with more than 1 mountain.
Formula: LET(query1,SUMMARIZE(F1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Formula2: LET(query1,SUMMARIZE(F2:F8,SUMX(A2:A8)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Level: hard
Question: The country having more than one mountain.
Formula: LET(query1,SUMMARIZE(F1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Formula2: LET(query1,SUMMARIZE(F2:F8,SUMX(A2:A8)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Level: hard
Question: the range with most mountains
Formula: TAKE(SORT(SUMMARIZE(E1,SUMX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(E2:E8,SUMX(A2:A8)), 2, -1), 1)
Level: hard
Question: What range do most mountains belong to?
Formula: TAKE(SORT(SUMMARIZE(E1,SUMX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(E2:E8,SUMX(A2:A8)), 2, -1), 1)
Level: hard
Question: names and ids for mountains with height above 5000 and prominence over 1000.
Formula: LET(query1,SUMMARIZE(HSTACK(B1,A1),SUMX(C1),SUMX(D1)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Formula2: LET(query1,SUMMARIZE(HSTACK(B2:B8,A2:A8),SUMX(C2:C8),SUMX(D2:D8)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Level: hard
Question: names and ids of mountains with height over 5000 and prominence above 1000
Formula: LET(query1,SUMMARIZE(HSTACK(B1,A1),SUMX(C1),SUMX(D1)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Formula2: LET(query1,SUMMARIZE(HSTACK(B2:B8,A2:A8),SUMX(C2:C8),SUMX(D2:D8)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Level: hard
Question: The ids for mountains in numerical order and their corresponding names.
Formula: SORT(UNIQUE(HSTACK(B1,A1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(B2:B8,A2:A8)), 2, 1)
Level: medium
Question: name of the tallest mountain
Formula: LET(a,HSTACK(B1,A1),b,A1,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A1,SUMX(C1)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: LET(a,HSTACK(B2:B8,A2:A8),b,A2:A8,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A2:A8,SUMX(C2:C8)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: the name of the highest mountain.
Formula: LET(a,HSTACK(B1,A1),b,A1,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A1,SUMX(C1)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: LET(a,HSTACK(B2:B8,A2:A8),b,A2:A8,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A2:A8,SUMX(C2:C8)), 2, -1), 1),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: the ranges of the top 3 mountains in prominence.
Formula: LET(a,HSTACK(E1,A1),b,A1,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A1,SUMX(D1)), 2, -1), 3),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: LET(a,HSTACK(E2:E8,A2:A8),b,A2:A8,c,CHOOSECOLS(TAKE(SORT(SUMMARIZE(A2:A8,SUMX(D2:D8)), 2, -1), 3),1),UNIQUE(FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: the country with more than 1 mountain.
Formula: LET(query1,SUMMARIZE(F1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Formula2: LET(query1,SUMMARIZE(F2:F8,SUMX(A2:A8)),FILTER(query1,CHOOSECOLS(query1,3)>1))
Level: hard
Question: the name and id for the mountain with the height above 5000 and prominence over 1000.
Formula: LET(query1,SUMMARIZE(HSTACK(B1,A1),SUMX(C1),SUMX(D1)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Formula2: LET(query1,SUMMARIZE(HSTACK(B2:B8,A2:A8),SUMX(C2:C8),SUMX(D2:D8)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Level: hard
Question: the names and ids of mountains with the height over 5000 and the prominence above 1000
Formula: LET(query1,SUMMARIZE(HSTACK(B1,A1),SUMX(C1),SUMX(D1)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Formula2: LET(query1,SUMMARIZE(HSTACK(B2:B8,A2:A8),SUMX(C2:C8),SUMX(D2:D8)),FILTER(query1,(CHOOSECOLS(query1,3)>5000)*(CHOOSECOLS(query1,4)>1000)))
Level: hard