I have teeth but i don't bite. Who Am I ?

What has 88 keys?

Can you make four (4) nines (9) equal 100?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

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

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

In the picture given below, can you find out which digit will take place of the question mark?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?