What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

What am I?