Why do you find that most of the buildings are deprived of the 13th floor?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

How many times in a given day, minutes and hour clock comes in a straight line ?

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

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

In the Mexico City area, there are two Houses H1 and H2. Both H1 and H2 have two children each.
In House H1, The boy plays for Mexico Youth academy and the other child plays baseball.
In House H2, The boy Plays soccer for his school in Mexico and they recently have a newborn.

Can you prove that the probability of House-H1 having a girl child is more than that of House-H2?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

What has to be broken before you can use it?

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

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches