1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Why is Saturday stronger than Monday?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

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?

I have branches, but no fruit, trunk or leaves. What am I?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

I can write cow in 13 letters.

Can You?