THERE ARE TWO BROTHERS THEY TURN THEIR BACK ON ONE ANOTHER RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

The correct answer is the chair. The chair has legs but it cannot walk, the chair has arms but it cannot be reached but still, they are strong. Did you answer this riddle correctly?
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The boy lived before Christ. Therefore, in 1995 B.C. he was 10 years old, and in 1990 he turned 15. Did you answer this riddle correctly?
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Time Did you answer this riddle correctly?
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The number 15 Did you answer this riddle correctly?
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Charcoal Did you answer this riddle correctly?
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A ton Did you answer this riddle correctly?
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Mirror 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