One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

People make me, save me, change me, raise me. What am I?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

What goes up but never comes down?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?