What month of the year has 28 days?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

What is the centre of gravity?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What number do you get when you multiply all of the numbers on a telephone's number pad?