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

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

What is full of holes but still holds water?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

What is the largest number you can write with just 3 digits?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

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