what does the below math rebus puzzle mean?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

The more you take me, the more you leave me behind.
Who Am I?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

How is the moon similar to a dollar?

What is the Surname of Barbie Doll?

Can you make four (4) nines (9) equal 100?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

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.

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