There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Buy me, smell me or deliver me, I do not change.

Who am I?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

Remove two matchsticks to make the below equation correct.

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

who is silent in the parliament?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?