What is harder to catch the faster you run?

Can you find the key in the picture below?

When it is alive we sing, when it is dead we clap our hands. What is it?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

When does a USA Potato change its nationality?

Replace the question mark with the correct number in the below-given picture?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?