A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

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

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Bay of Bengal is in which state?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

I have branches, but no fruit, trunk or leaves. What am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?