What number when divided in half becomes zero?

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

What does a man do only once in his lifetime, but women do once a year after they are 29?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

Be active and find the killer in the picture Riddle below.