The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

Count the number of triangles in the picture below:

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

How can a man go eight days without sleep?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

What do you get if you add 2 to 100 four times?