Why is a river so rich ?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

Solve the mathematical equation in the picture below.

Can you count the number of triangles in the given picture?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

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?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.