Can you count the number of triangles in the picture below?

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

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you start the fire using two pieces of wood?

Keyboard words are not in alphabetical order, Why?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
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* * *