WHAT IS WOR LIKE OPPOSE THE MOTION IN OTHER SITUATIONS L FACILITATE THE MOTION BUT L ALWAYS OPPOSE THE RELATIVE MOTION BETWEEN TWO MOVING SURFACES PUT SOME LUBRICANT AND L BECOME SMALL THERE MAK RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

The man was more than halfway across a bridge when he spotted the police car, so the quickest way to leave the bridge was to run towards the police car and then turn and run into the woods to hide. Did you answer this riddle correctly?
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Use the number 5 three times, 55 + 5 = 60 Did you answer this riddle correctly?
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Both barbers must go to the other barber to get their haircuts. Since the first barber had a clean haircut, that means the second barber gives good haircuts and the first barber doesn't. Did you answer this riddle correctly?
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A pencil Did you answer this riddle correctly?
YES  NO  

He made $20. $10 the first time, $70 - $60 = $10, and $10 the second time, $90 - $80 = $10, for a total of $20. Did you answer this riddle correctly?
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Paint Did you answer this riddle correctly?
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A hole Did you answer this riddle correctly?
YES  NO  

Green eggs and ham Did you answer this riddle correctly?
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A mailbox. Did you answer this riddle correctly?
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Answer is Man number 2.

Lets start by eliminating men. Man number 4 is at the other end of opaque wall facing other side. There is no way he can see any men or the color of their hat. So he is eliminated. Now man no 3 also cannot see anyone else - he cannot look back and he cannot see beyond wall. So he is eliminated too. Now man number 1 knows the color of man 2 and 3. Now lets say they (2 and 3) were wearing same color hat then man no 1 would know the color of his hat since there are 2 white and 2 black hat. But he keeps mum which means man 2 and 3 are wearing different hat. S0 man number 2 waits for sometime if he does not hear man 1 calling out that means man 2 and 3 are wearing different color hats. Since man 2 knows the color of hat wore by man 3 he know the color of his hat and calls it out. Did you answer this riddle correctly?
YES  NO