The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

What breaks yet never falls, and what falls yet never breaks?

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

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?