You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Why is a river so rich ?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

In the image given, you can find several triangles. Can you count them all?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

What is the centre of gravity?