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

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?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

Find the hidden tiger in the given optical illusion ?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

Can you find out the missing number in the grid?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?