Can you count the number of quadrilaterals in the picture below?

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

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?

Which English verb becomes past tense just by rearranging the letters?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?