On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

Count the number of lines in the image below ?

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

Replace the question mark with the number below given a simple math problem.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Decode below rebus
D
N
A
T
S , D

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

Solve the puzzle by telling what does below picture means.

I am white when I am dirty, and black when I am clean. What am I?