Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

If Rajina's daughter is my daughter's mom, who am I to Rajina?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

I’m tall when I’m young, and I’m short when I’m old. What am I?

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

Can you find the key in the picture below?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

O_er_t_o_

Complete the missing letters of the given word.

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?