Table:
0
A
B
C
D
E
F
G
H
1
flight id
vehicle flight number
date
pilot
velocity
altitude
airport id
company id
2
1
M2-F1 #0
1-Mar-63
Thompson
135
0
1
2
3
2
M2-F1 #1
16-Aug-63
Thompson
240
3650
2
3
4
3
M2-F1 #6
3-Sep-63
Thompson
240
3650
2
4
5
4
M2-F1 #13
25-Oct-63
Thompson
240
3650
3
4
6
5
M2-F1 #14
8-Nov-63
Thompson
240
3650
4
5
7
6
M2-F1 #21
29-Jan-64
Thompson
240
3650
4
6
8
7
M2-F1 #33
30-Mar-64
Peterson
240
3650
5
11
9
8
M2-F1 #39
19-May-64
Peterson
240
3650
2
13
10
9
M2-F1 #61
16-Jul-65
Thompson
240
3650
6
11
11
10
M2-F1 #64
30-Aug-65
Thompson
240
3650
9
1
12
11
M2-F1 #70
8-Oct-65
Thompson
240
3650
4
5
13
12
M2-F1 #71
28-Mar-66
Thompson
240
3650
6
7
14
13
M2-F1 #73
4-Aug-66
Peterson
240
3650
8
9

Questions and formulas:
Question: How many flights have a velocity larger than 200?
Formula: SUM(LET(a,A1,b,A1,c,INDEX(LET(query1,SUMMARIZE(A1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)>200)),,1),FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: SUM(LET(a,A2:A14,b,A2:A14,c,INDEX(LET(query1,SUMMARIZE(A2:A14,SUMX(E2:E14)),FILTER(query1,CHOOSECOLS(query1,2)>200)),,1),FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: List the vehicle flight number, date and pilot of all the flights, ordered by altitude.
Formula: SORTBY(CHOOSE({1,2,3},B1,C1,D1),F1,1)
Formula2: SORTBY(CHOOSE({1,2,3},B2:B14,C2:C14,D2:D14),F2:F14,1)
Level: easy
Question: What is the velocity of the pilot named 'Thompson'?
Formula: AVERAGE(FILTER(E1,D1="Thompson"))
Formula2: AVERAGE(FILTER(E2:E14,D2:D14="Thompson"))
Level: easy
Question: which pilot is in charge of the most number of flights?
Formula: TAKE(SORT(SUMMARIZE(D1,SUMX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(D2:D14,SUMX(A2:A14)), 2, -1), 1)
Level: hard
Question: Which pilot has flown the most flights? 
Formula: TAKE(SORT(SUMMARIZE(D1,SUMX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(D2:D14,SUMX(A2:A14)), 2, -1), 1)
Level: hard
Question: The number of flights with over 200 velocity.
Formula: SUM(LET(a,A1,b,A1,c,INDEX(LET(query1,SUMMARIZE(A1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)>200)),,1),FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Formula2: SUM(LET(a,A2:A14,b,A2:A14,c,INDEX(LET(query1,SUMMARIZE(A2:A14,SUMX(E2:E14)),FILTER(query1,CHOOSECOLS(query1,2)>200)),,1),FILTER(a,NOT(ISNA(XLOOKUP(b,c,c))))))
Level: hard
Question: The pilot with the most flights.
Formula: TAKE(SORT(SUMMARIZE(D1,SUMX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(D2:D14,SUMX(A2:A14)), 2, -1), 1)
Level: hard