2, 3, 5, 9, 17, _ What is the next number in the sequence?

Can you find out the remainder when 3^300 is divided by 5?

Can you solve this picture maths equation?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

Can you solve the photo plexer logic ?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?