You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

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

Which is the correct shadow of the bird?

Can you spot the hidden girl in the picture below?

I know a nine-letter word having only one vowel.
Do you ?

What number divided by 4 is the same as that number minus 4?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?