There was a strange boy who was born before his father. How can this be possible?

Can you find the key in the picture below?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What has hands, but can’t clap?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Spot 5 differences in two Christmas tree below:

Which is faster, Heat or Cold ? Explain.

Below rebus represent famous DiCaprio movie. Can you name it?

Can you solve the below tricky visual equation?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?