How many sides does a circle have?

What can go through glass without breaking it?

Which Burger Is Different in below image?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED

There is a jar in which there are two types of candies.
20 blueberries and 16 strawberries. You perform the following steps:
1) You take out two candies.
2) If the two candies are of the same flavour, you add a blueberry one otherwise, you add the strawberry one.

You repeat these two steps till there is just one candy remaining in the jar. Which flavoured candy will be left?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

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?

Identify the hidden meaning behind this picture?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?