How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

I am quite hot but become too cold if you remove the first two letters. What am I?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

what one word does the below rebus identifies?

Count the number of triangles in the picture below:

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