What is the next number in this matchsticks series riddle?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

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

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

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?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?