Can you place three balls such that the equation shown in the picture holds true?

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

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

John was piloting a plane behind a car but was never able to overtake it. Why?

Find the value of "?" in the ball picture Riddle below:

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?