It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

What goes up but never comes down?

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

I have teeth but i don't bite. Who Am I ?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

You need to move three matchsticks to form three squares. Can you do it?

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

Decode below rebus
D
N
A
T
S , D