How can you make number one disappear by adding something to it?

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?

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?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

Can you find the hidden animal in the picture below?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?