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.

Find the next number in the following series:
6, 14, 26, 98, __?

What has lots of eyes, but can’t see?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

What is the word or phrase below?
R | E | A | D

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?