I always drive my customer away.

Who am I?

What is always in front of you but can’t be seen?

You need to move three matchsticks to form three squares. Can you do it?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

I am sure no one can have two things for dinner. what are they?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?