Who can jump higher than a Mountain?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Find the number of squares in the below-given picture.

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Replace the question mark with the correct number.

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

Which Travels Faster? Solve below famous picture riddle:

Spot what is wrong here in below Picture?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.