Count the number of triangles in the picture below:

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

I have an eye but still cannot see.

Who am I?

Find the hidden tiger in the given optical illusion ?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

What is full of holes but still holds water?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

How can one talk without saying a single word?