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Across: CADS, YOLK, DATE, PIGS
Down : GLAD, STAY, COPE, SKID
Boxes : LADY, SOCK, STAG, PIED
Note : Other anagrams of these words are OK as long as they don't change the answer grid.
Puzzle 400
How many grains of sand do you need...
...until you have a heap of sand?
[Puzzle Code = 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?
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