See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

What is always in front of you but can’t be seen?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.