Can you count the number of quadrilaterals in the picture below?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

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?

With the help clues provided in the image, can you find the 5 digit key?

Solve the following series:
AZ, GT, MN, __, YB

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?