Can you make four (4) nines (9) equal 100?

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

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

What does below Rebus mean ?

esgg sgeg gegs gsge

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

What's the best place to go shopping in the ocean?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?