What will you call your mother's brother's brother-in-law?

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?

I add 5 to 9 and get 2. The answer is correct, so what am I?

what one word does the below rebus identifies?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What can you see in the middle of March and April that you can never see in any other month?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _