Before Mount Everest was discovered, what was the highest mountain in the world?

I am the fastest animal but cannot climb the tree. What am I?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

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

These types of puzzles are known as charades. What you have to do is find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be office.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?