Table:
0
A
B
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D
E
F
G
1
No.
English name
Bulgarian name
Bulgarian name ( Transliteration )
Old Bulgarian Names
Old Bulgarian name (Transliteration)
Old Bulgarian name - Meaning
2
1
January
Януари
Yanuari
Просинец, Колог, Коложег, Голям сечко
Prosinets, Kolog, Kolozheg, Golyam sechko
Month of burning trunks
3
2
February
Февруари
Fevruari
Съчен, Сечко, Малък сечко
Sachen, Sechko, Malak sechko
Month of dreadful ice
4
3
March
Март
Mart
Сух
Suh
Dry month
5
4
April
Април
April
Брязок
Bryazok
Colorful month
6
5
May
Май
May
Тръвен
Traven
Grass month
7
6
June
Юни
Yuni
Изок, Червеник
Izok, Chervenik
Red month
8
7
July
Юли
Yuli
Чръвенъ, жетар, жътвар, сърпен
Chraven, Zhetar, Zhatvar, Sarpen
Harvesting month
9
8
August
Август
Avgust
Орач, Зарев
Orach, Zarev
Tillage month
10
9
September
Септември
Septemvri
Руен, Руй
Ruen, Ruy
Bounteous month
11
10
October
Октомври
Oktomvri
Листопад
Listopad
Month of falling leaves
12
11
November
Ноември
Noemvri
Груден
Gruden
Month of tubers

Questions and formulas:
Question: Name the english name for orach, zarev
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,F1="Orach, Zarev"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G12,F2:F12="Orach, Zarev"),2))
Level: medium
Question: Name the old bulgarian names for yuni
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="Yuni"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G12,D2:D12="Yuni"),5))
Level: medium
Question: Name the old bulgarian names for yanuari
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="Yanuari"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G12,D2:D12="Yanuari"),5))
Level: medium
Question: Name the bulgarian name for mart
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="Mart"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G12,D2:D12="Mart"),3))
Level: medium
Question: Name the old bulgarian name for ruen, ruy
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,F1="Ruen, Ruy"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G12,F2:F12="Ruen, Ruy"),7))
Level: medium
Question: Name the old bulgarian name for number 4
Formula: LET(query1,SUMMARIZE(G1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=4))
Formula2: LET(query1,SUMMARIZE(G2:G12,SUMX(A2:A12)),FILTER(query1,CHOOSECOLS(query1,2)=4))
Level: hard