Why is a river so rich ?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

There are forty elephants and they have forty-fore heads. How can this be possible?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

What is the centre of gravity?

What is the riddle which can be asked all day with a different correct answer each time.

Can you identify the Oscar-winning movie from the rebus below?

Can you find the six hidden animals in the picture below?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.