People put me on the table and cut me but do not eat me. What am I?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Keyboard words are not in alphabetical order, Why?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Can you find the dog hidden in a group of pandas?

I taste better than I can smell. Who am I?