How many keys are there in a piano? 66 / 77 / 88
88
At what age can you vote in a general election in the UK? 16 / 18 / 21
18
How many letters are there in the English alphabet? 24 / 26 / 30
26
What is the population of the UK? about 65,000,000 / about 75,000,000 / about 85,000,000
About 65,000,000
How many calories are there in a Big Mac? 550 / 485 / 305
550
How many players are there in a football team? 9 / 10 / 11
11
How many seconds are there in an hour? 3,600 / 3,000 / 36,000
3,600
How far is it from New York City to Los Angeles? about 4,000 km / about 2,500 km / about 5,000 km
About 5,000 km