There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

A father's child, a mother's child, yet no one's son.

Who am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

What is full of holes but still holds water?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?