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

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

What number should come in place of the question mark below?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

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

There was a strange boy who was born before his father. How can this be possible?

What does the below mathematical rebus mean?