First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

Solve the counting riddle by identifying the number of triangles in the given picture.

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

I have teeth but i don't bite. Who Am I ?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Can you write down eight eights so that they add up to one thousand?

Which country gets ill every time?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?