I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

In the four images below, can you find the odd one out?

What building has the most stories?

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

Which fur should we be getting from the Lion?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

With the help clues provided in the image, can you find the 5 digit key?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?