Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

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.

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Solve the following series:
AZ, GT, MN, __, YB

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Can you find out the total number of triangles in the given figure?

If you say my name, I will no longer exist. What am I?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

John was piloting a plane behind a car but was never able to overtake it. Why?