There was an aeroplane crash, every single person died, but two people survived. How is this possible?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

There is something which you can be arrested for attempting but not for successfully completing.

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

What is the next number in this series?

4,12,84,3612....

Find the 8 in the below-given Image.

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

What is the next number in this matchsticks series riddle?