I have teeth but i don't bite. Who Am I ?

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

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Spot what is wrong here in below Picture?

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

Find the hidden panda in the image below.

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Find the last number in the series below:

voN luJ yaM raM ---

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?