Riddle me this

Riddles galore!

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

Which is correct to say, "The yolk of the egg are white," or "The yolk of the egg is white?"

What word of more than 1 letter, can be written forward, backward or upside down, and can still be read from left to right?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

Black I am and much admired, men seek me until they're tired. When they find me, they break my head, and take from me my resting bed. What am I?

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

My 25th post.

Ozzy wrote:What word of more than one letter, can be written forward, backward or upside down, and can still be read from left to right?

the word "I"

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

a river?

Ozzy wrote:Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

No one man got wet, all 4 did.

Ozzy wrote:Which is correct to say, "The yolk of the egg are white," or "The yolk of the egg is white?"

neither, the yolk is yellow

The Gamer Lord wrote:My 25th post.

Ozzy wrote:What word of more than 1 letter, can be written forward, backward or upside down, and can still be read from left to right?

the word "I"

The word noon

Ozzy wrote:

The Gamer Lord wrote:My 25th post.

Ozzy wrote:What word of more than 1 letter, can be written forward, backward or upside down, and can still be read from left to right?

the word "I"

The word noon

Well I supose but mine works too, take I which is always capital turn it usd and you get I. Noon only works depending on how you write it.

I Is a letter, Noon Is a word.

Ozzy does have a point, buy TGL's "I" made sense too. I is a letter and NOON is a word.