If a wheel has 54 spokes, how many spaces are there between the spokes?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Keyboard words are not in alphabetical order, Why?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

Which alphabet letter is a question?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98