Riddle me this Vol 6

Hello ladies and gents today we are gonnah get our nerd on.

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Mr. Smith has 4 daughters. Each of his daughters has a brother. How many children does Mr. Smith have?
He has 5 children, all of the daughters have the same 1 brother.

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I'm tall when I'm young, I'm short when I'm old. What am I?

Candle / Pencil

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Fashions change but what can a person wear that is never out of style?
A smile

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I have six faces but not even one body connected, 21 eyes in total but cannot see. What am I?
A dice

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What has an eye but cannot see?
A needle

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I hoped you enjoyed these little riddles and as always have a chilled day from the Viking