Can you count the number of triangles in the given figure?

The dirtier I get, the whiter I look. Who am I?

Which tank will fill first?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

What jumps when it walks and sits when it stands?

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

Prove that the below maths equation is true.

8 + 8 = 91

Find the missing number in the sequence below: