Puzzle 29
How much soil is there …
… in a circular hole 2 metres deep and 1 metre across?
workings
hint
answer
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Share link: https://www.brainbashers.com/puzzle/zpof
Hint
How much soil is in any hole?
Puzzle 30
Which is heaviest …
a pound of feathers
a pound of wood
a pound of steel
workings
hint
answer
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Share link: https://www.brainbashers.com/puzzle/zehf
Hint
Imagine a set of scales.
Answer
They are all the same!
Puzzle 31
How many times can you take 7 away from 49?
workings
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answer
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Share link: https://www.brainbashers.com/puzzle/ztqm
Hint
This is a trick question.
Answer
Once.
After which you will be taking 7 from 42!
Puzzle 32
What kind of room has no windows or doors?
workings
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answer
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Share link: https://www.brainbashers.com/puzzle/zopi
Answer
A mushroom.
Or perhaps elbow room.
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