Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

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?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Where do fish keep their money?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.