About the human brain.

Face optical illusion

Quiz!

1.Is there a 4th of July in England?
2.How many birthdays does the average man have?
3.Some months have 31 days; how many have 28?
4.In baseball how many outs are there in an inning?
5.Is it legal for a man in California to marry his widow's sister?

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Optical illusion

Plus one/Minus one maze

Starting at the 1 in the upper left corner, can you make your way to the 10 in the lower right? On each turn, you can move to any space in the same row or column, as long as the number you move to is one greater or one less than your current number.

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Riddles

1. It walks on four legs in the morning, two legs at noon and three legs in the evening. What is it?
2. What always runs but never walks, often murmurs, never talks, has a bed but never sleeps, has a mouth but never eats?
3. At night they come without being fetched. By day they are lost without being stolen. What are they? 
4.The person who makes it, sells it. The person who buys it never uses it and the person who uses it doesn't know they are. What is it?
5. The more you have of it, the less you see. What is it?

Face optical illusion

Johnny depp optical illusion