I go up and down the stairs without moving, always guiding you; What am I?
A hand rail.
I'm known to have nine lives, but am not a video game character. What am I?
A cat.
When I take five and add six, I get eleven, but when I take six and add seven, I get one. What am I?
A clock.
Multiply me by anything, and I'll always be the winner; What am I?
Zero.
When you see beyond my cover, I will make you weep; What am I?
An onion.
In this building, I look down upon you with hands that tell you where to be; What am I?
A clock.
If you have me you want to share me, if you share me you won't have me; What am I?
A secret.
You can catch me to your misfortune, but you can't thrown me with your hands; What am I?
A cold.
A word I know, five letters it contains. Take away a loaf, and twelve is what remains.
A dozen.
What tasty kind of room has no windows or doors?
Mushroom.
The more there is of me the less you will see; What am I?
The Darkness.
If I drink I die but if I consume I thrive; What am I?
Fire.
I can be quick to those that struggle or I am kicking back on the coast, depending on the mood; What am I?
Sand.
If you divide thirty by half, and add ten, what do you get?
70
When it comes to my large round self, go and eat at red but stop at green; What am I?
Watermelon.
You hear me once, you hear me again, then I fade until I am called again; What am I?
An echo.
I'm tall when I'm young but age burns my height away; What am I?
A candle.
I have a damp mouth but cannot chew as I do not live; What am I?
A river OR a cave.
When I was 6, my brother was half my age. Now that I am 24, how old is my brother?
21 years old.
I come in bundles or pairs, with crimson skin and a pit made of stone; What am I?
Cherries.
Creeping on my belly, curled uptight. Eyes slanted open, beware my lethal bite; What am I?
A snake / viper.
Long and thin, red within, with a nail at the end; What am I?
A finger.
The Pearls of Night, stolen to glisten upon the morning fields; What am I?
The Dew.
How many letters are there in "the English alphabet"?
18 letters.
I live without breath, and may be as cold as death; I never thirst, as I am ever drinking, clad in shiny scale-mail never clinking; What am I?
A fish.