What is harder to catch the faster you run?

I look at you, you look at me I raise my right, you raise your left. What am I?

You bought me for dinner but never eat me. What am I?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Why is a river so rich ?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?