What you cannot hold but it is yours?

81 x 9 = 801. What must you do to make the this equation true?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

Why do you find that most of the buildings are deprived of the 13th floor?

Can you find the missing piece of the Porsche?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?