Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

A sundial has the fewest moving parts of any timepiece. Which has the most?

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

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

Replace the question mark with the correct number in the below-given picture?

Can you spot the man between the coffee bean in the picture below ?

I look at you, you look at me, I raise my right, you raise your left. What am I?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

Why are all black people so quick ?