It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

My location can be determined by the below rebus.
So where am i ?

Find the smallest sentence with all the English alphabet.

Who always enjoys poor health?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.