If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

There was a strange boy who was born before his father. How can this be possible?

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

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

When is the top of a mountain similar to a savings account?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Can you find out the missing number in the grid?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?