Why are all black people so quick ?

Name a key which is hardest to turn.

Can you find out who is the kidnapper in below Picture and why, Explain ?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

what does the below math rebus puzzle mean?

I know a nine-letter word having only one vowel.
Do you ?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

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

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?