Can you find the missing piece of the Porsche?

A person is found murdered in his Chamber. When the crime scene is investigated, the Investigator find out that there is a calendar on which the victim has written a few numbers with his blood. The numbers are 4, 11, 11 and 4.

There are four suspects in the murder, John, Jacob, Anna and Lee. Can you find out who is the murderer?

What does this rebus means ?

PROG WORKRESS

Can you count the number of matches in the picture below ?

I make two people out of one. What am I?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Which tank will fill first?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

What do you answer even though it never asks you questions?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?