If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

81 x 9 = 801. What must you do to make the this equation true?

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

What jumps when it walks and sits when it stands?

Count the squares in the matchstick puzzle below?

What is the difference between a jeweller and a jailer?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

Move four matchsticks to the below square to form three squares?