Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

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

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

Whats the next number in the below number sequence pattern.

I shave every day, but my beard stays the same. What am I?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

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

What Is It?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?