Which country gets ill every time?

What is the next number in the series?

15 29 56 108 208 ?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

When 99 is considered higher than 100?

You can hear me, but you can't touch or see me.

What am I?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

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?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?