What breaks yet never falls, and what falls yet never breaks?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Which is the correct shadow of the bird?

Our product and our sum always give the same answer. Who are we?

Why do people go to bed?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

What word does this rebus represent?

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You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?