What English word has three consecutive double letters?

I have no life, but I can die. What am I?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

What is full of holes but still holds water?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?