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?

What is the end of everything?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

How many triangles are there on the puzzle below?

How can a man go eight days without sleep?

Can you place six X (crosses) in below board without making three in a row in any way ?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

How many triangles can you find in this given picture?