Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

What have one eye but still cannot see?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

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 sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

I have an eye but still cannot see.

Who am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

Which is faster, Heat or Cold ? Explain.