What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Which tank will fill first?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

What will you call your mother's brother's brother-in-law?

Be active and find the killer in the picture Riddle below.

Find The Missing Number In the Sequence.
6 25 64 ? 32 1