John was piloting a plane behind a car but was never able to overtake it. Why?

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?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

What has 88 keys?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

What is so fragile that saying its name breaks it?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

What is the word or phrase?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100