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If there are 4 empty seats in a theatre, how many combinations are there for the number of ways 4 people could sit in these seats?
[Ref: ZBAA]
Hint: Try labelling the people A, B, C and D.
Answer: 24.
Think of naming the people A, B, C and D. If A sat on the left then the others could sit in one of these ways: BCD, BDC, CBD, CDB, DBC, DCB  6 ways. But any one of the four could sit on the left seat, so we must multiple our answer by 4, giving 24.
Puzzle 1202
If Mario can eat 110 cakes in 10 minutes and Kev can eat 56 cakes in 8 minutes, how long will it take Mario and Kev to eat 954 cakes?
Hint: There are 5280 feet in a mile, 8 furlongs in a mile and 3 feet in a yard.
Answer:
Square feet in half a square mile.
There are 13,939,200 square feet in half a square mile and 10,648,000 cubic yards in a cubic furlong.
Puzzle 1204
Is the following equation correct? If so, how:
8 + 8 = 91
[Ref: ZNSI]
Hint: Think laterally.
Answer: Yes.
Turn the equation upside down:
16 = 8 + 8.
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