Puzzle 157
What common word has …
… 4 vowels, one after the other?
workings
hint
answer
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Hint
The word starts with the letter Q.
Puzzle 158
If 5 cats can catch 5 rats in 5 minutes …
… how many cats do you need to catch 100 rats in 100 minutes?
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answer
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Hint
How many rats can one cat catch in 5 minutes?
Answer
5.
5 cats can catch 5 rats in 5 minutes.
So
1 cat can catch 1 rat in 5 minutes.
1 cat can catch 2 rats in 10 minutes.
1 cat can catch 20 rats in 100 minutes.
Therefore
5 cats can catch 100 rats in 100 minutes.
Puzzle 159
Which is greater?
The number of seconds in a year.
Miles that light can travel in 3 minutes.
Puzzle Copyright © Kevin Stone
workings
hint
answer
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Share link: https://www.brainbashers.com/puzzle/zvhz
Hint
Light travels around 186,000 miles each second.
Answer
Miles that light can travel in 3 minutes.
There are 31,536,000 seconds in a typical year, and light can travel about 33,530,831 miles in 3 minutes.
Puzzle 160
What is the 10th prime number?
2, 3, 5, 7, …
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answer
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Hint
2, 3, 5, 7, 11, 13, 17, 19, 23, …
Answer
29.
The first ten prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29.
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