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What is it that the person who makes it doesn't need it.
The person who buys it does not need it for themselves and the person who uses it doesn't know it?
[Ref: ZZRT]
Direct Link: www.brainbashers.com?ZZRT
Hint: Hopefully you won't need one for a very long time.
Answer: A coffin.
Puzzle 14
Half of zero is still zero.
What other number can be halved to make zero?
[Ref: ZBQV]
Direct Link: www.brainbashers.com?ZBQV
Hint: This can't be an actual sum, so what could it be?
Answer: Eight.
When written as a digit, 8, the top half is 0, and the bottom half is also 0.
Puzzle 15
How many grains of sand do you need...
...until you have a heap of sand?
[Ref: ZMQO]
Direct Link: www.brainbashers.com?ZMQO
Hint: Is a million grains of sand a heap?
Answer: We can safely say two things:
1. A million grains of sand is a heap.
2. If we remove one grain of sand from a heap, we still have a heap.
We can now keep repeating #2 until we only have a single grain of sand remaining. Is this a heap? Clearly not. But what went wrong with our thinking?
This is called the Sorites paradox (soros being Greek for "heap"), and is a classic paradox that has no real answer. Both #1 and #2 are true, and we can indeed keep removing one grain of sand until we have a single grain remaining. When does the heap become a nonheap? If we remove one more grain we're left with nothing, is this still a heap?
Puzzle 16
Below you will see six glasses. Three of these glasses contain orange. Moving only ONE glass, can you arrange the glasses such that those containing the orange are together?
[Ref: ZNAW]
Direct Link: www.brainbashers.com?ZNAW
Hint:
Answer: Simply take the second glass and pour the orange into the fifth glass.
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