You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Be active and find the killer in the picture Riddle below.

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

No one wants to have it, but if one got it, he does not want to lose it. What is It?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

Can you write down eight eights so that they add up to one thousand?

Replace the question mark with the correct number below.