Can you calculate the probability of getting a sum of six when a dice is thrown twice?

I always drive my customer away.

Who am I?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

How can you tell a raw egg from a hard-boiled egg?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?