A World of Mystery

  What Comes Once in a 'Year', Twice in 'Every Month', Four times in 'Every Week', Six times in 'Every Weekend'?

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    What is as big as you are and yet does not weigh anything?

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    what word looks the same backwards and upside down?

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   David’s parents have three sons: Sam, Cane, and what’s the name of the third son?

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    What month of the year has 28 days?

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What belongs to you, but everyone else uses it?

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What can’t talk but will reply when spoken to?

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  The more of this there is, the less you see. What is it?

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Mary has four daughters, and each of her daughters has a brother. How many children does Mary have?

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 What goes through cities and fields, but never moves?

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