You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

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

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

Can you name some countries which do not have the alphabet 'A' in them?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Who has married many women but was never married?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?