Which country gets ill every time?

How do you go from 98 to 720 using just one letter?

By moving just one matchstick, you need to make the below statement true. Can you do it?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Move three sticks of the spiral below to form a square.

Can you find out the number of the parking space in which the car is parked?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?