Find the hidden tiger in the given optical illusion ?

Why is Saturday stronger than Monday?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

Solve the puzzle by telling what does below picture means.

Prove that the below maths equation is true.

8 + 8 = 91

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?