If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

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?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

Can you find out who is the kidnapper in below Picture and why, Explain ?

What is so fragile that saying its name breaks it?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Solve this riddle by finding the odd one out from the rest.

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.