Table:
0
A
B
C
D
E
F
1
Former kingdom
Province
Hangul
Hanja
Capital
Modern equivalent
2
Silla
Yangju
양주
良州
Yangju
Eastern Gyeongsang
3
Silla
Gangju
강주
康州
Gangju
Western South Gyeongsang
4
Silla
Sangju
상주
尙州
Sangju
Western North Gyeongsang
5
Baekje
Muju
무주
武州
Muju
South Jeolla
6
Baekje
Jeonju
전주
全州
Jeonju
North Jeolla
7
Baekje
Ungju
웅주
熊州
Gongju
South Chungcheong
8
Goguryeo
Hanju
한주
漢州
Hanju ( Seoul )
North Chungcheong , Gyeonggi , Hwanghae
9
Goguryeo
Sakju
삭주
朔州
Sakju
Western Gangwon
10
Goguryeo
Myeongju
명주
溟州
Myeongju
Eastern Gangwon

Questions and formulas:
Question: Which province has muju as the capital?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="muju"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,E2:E10="muju"),2))
Level: medium
Question: What is the modern equivalent of 良州 in Hanja?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="良州"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,D2:D10="良州"),6))
Level: medium
Question: What is the capital of the province with 양주 in Hangul?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="양주"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,C2:C10="양주"),5))
Level: medium
Question: What is the capital of the province with 漢州 in Hanja?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="漢州"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,D2:D10="漢州"),5))
Level: medium
Question: What is the Hanja for the sakju province?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="sakju"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,B2:B10="sakju"),4))
Level: medium