I shave every day, but my beard stays the same. What am I?

Can you place three balls such that the equation shown in the picture holds true?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Below rebus represent famous DiCaprio movie. Can you name it?

You are given a set of weighing scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other. The 12 marbles appear to be identical. 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more. Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Count the number of triangles in the picture below:

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Find the next number in the sequence

5 12 24 36 ?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?