What has hands, but can’t clap?

You can hear me, but you can't touch or see me.

What am I?

In which direction should the missing arrow point?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

What runs around the whole yard without moving?

I am sure no one can have two things for dinner. what are they?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.