Which is the correct shadow of the bird?

How many letters are in the alphabet?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

If eleven plus two equals one, what does nine plus five equal?

What has many keys but can’t open a single lock?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

What is more useful when it is broken?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?