There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Can you write down eight eights so that they add up to one thousand?

Make a sentence consisting of three words that have the whole alphabet.

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

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?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Find out the number of circles in the given picture having Illusion

A father's child, a mother's child, yet no one's son.

Who am I?

It belongs to you, but other people use it more than you do. What is it?