Check the following image and Guess is the kidnapper?
Here is a conversation of a couple who both are the software professional.
Husband: Hey! What is your date of birth? Wife Replied Angrily: It is 591062400 Husband after doing some calculation replied, "Got It".
What is the DOB of the wife?
In the below figure , a square ABCD of area 225, E is the intersection of BD and the semicircle of diameter AD, and CF is tangent to the semicircle. Then, what is the area of DEF?
Who is the kidnapper?