Table:
0
A
B
C
D
E
1
country id
country name
capital
official native language
country
2
1
Indonesia
Jakarta
Bahasa Indonesia
3
2
Iran
Tehran
Persian ( Arabic script )
4
3
Iraq
Baghdad
Arabic ( Arabic script ) Kurdish
5
4
Ireland
Dublin
Irish English
6
5
Isle of Man
Douglas
English Manx
7
6
United States
Washington
English

Questions and formulas:
Question: How many countries are there in total?
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E7))
Level: easy
Question: Count the number of countries.
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E7))
Level: easy
Question: Show the country name and capital of all countries.
Formula: CHOOSE({1,2},B1,C1)
Formula2: CHOOSE({1,2},B2:B7,C2:C7)
Level: easy
Question: What are the names and capitals of each country?
Formula: CHOOSE({1,2},B1,C1)
Formula2: CHOOSE({1,2},B2:B7,C2:C7)
Level: easy
Question: total number of countries
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E7))
Level: easy
Question: How many countries in total?
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E7))
Level: easy
Question: Show country names, capitals and countries?
Formula: UNIQUE(HSTACK(B1,C1,E1))
Formula2: UNIQUE(HSTACK(B2:B7,C2:C7,E2:E7))
Level: easy
Question: capitals, country names and countries
Formula: UNIQUE(HSTACK(B1,C1,E1))
Formula2: UNIQUE(HSTACK(B2:B7,C2:C7,E2:E7))
Level: easy
Question: the number of countries
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E7))
Level: easy
Question: How many countries?
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E7))
Level: easy
Question: What are country names, capitals and countries?
Formula: UNIQUE(HSTACK(B1,C1,E1))
Formula2: UNIQUE(HSTACK(B2:B7,C2:C7,E2:E7))
Level: easy
Question: the capitals, country names and countries
Formula: UNIQUE(HSTACK(B1,C1,E1))
Formula2: UNIQUE(HSTACK(B2:B7,C2:C7,E2:E7))
Level: easy