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?

Replace the question mark with the correct number in the below-given picture?

Which number should replace the question mark?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Can you replace the question mark with the correct number in the below table sequence?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What has 13 hearts but no other organs?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).