Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

Prove that twice of ten is the same as twice of eleven.

Take away the whole and some still remain. What is it?

A blonde put eyeliner on her head. Why?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?

In the picture given below, can you find out which digit will take place of the question mark?