I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

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

When is the top of a mountain similar to a savings account?

What word begins and ends with an E, but has only one letter?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

What's a single-digit number with no value?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?