Which is Odd One Out and why?

4377

3954

9862

8454

9831

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

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?

Imagine you are in a room with no windows or doors. How will you get out?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?