Can anyone tell me a word in the English dictionary which has a silent 'z'?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

I add 5 to 9 and get 2. The answer is correct, so what am I?

What does does this rebus picture means ?

Can you spot the man between the coffee bean in the picture below ?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?