When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

They are three errirs in this question. Can you find them?

What has a bottom at the top?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

Can you move 2 matchsticks to form four equal sized squares.

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

What Deficiency does the below rebus represent?

VIT_MIN

I am quite hot but become too cold if you remove the first two letters. What am I?

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

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