What is black when you buy it, red when you use it, and gray when you throw it away?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

Only Highly Attentive Can Spot The Ladder In This Library In 7 Seconds! Can You?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

Next Number in the Series,

5, 16, 49, 104, ?

Sharpen your observation skills as you compare two seemingly identical images. Grab a magnifying glass, involve a buddy, and unleash your inner detective. Check the solution to see if you're a difference-detecting maestro!

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

Decode below rebus
D
N
A
T
S , D