A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

It belongs to you, but other people use it more than you do. What is it?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

One evening there was a murder in the home of a married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

Who are the happiest people in IPL match?