How can you make a TV, a bed, a dog, and a car liquid?

What is next number in the pattern below:

131 517 192 123 ?

Can you find out the missing number in the grid?

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?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Solve the following series:
AZ, GT, MN, __, YB

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?