There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

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?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Can you spot the hidden girl in the picture below?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

In the picture given below, can you find out which digit will take place of the question mark?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"