You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

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 ?

Can you find the 09 errors in the picture below?

With the help clues provided in the image, can you find the 5 digit key?

What does this simple rebus mean?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

Can you name some countries which do not have the alphabet 'A' in them?

You need to remove two matchsticks to make the below equation true. Can you do it ?

What is the next number in this matchsticks series riddle?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10