I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What is both possible and impossible at the same time?

Prove that twice of ten is the same as twice of eleven.

How many triangles are there on the puzzle below?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Can you divide the below-given shape into four equal and identical pieces?