What begins with T, ends with T, and has T in it?

I have Rs.50 and I spend it in the way as below.

What month of the year has 28 days?

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

I am sure no one can have two things for dinner. what are they?

What jumps when it walks and sits when it stands?

What is the centre of gravity?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?