::: spoiler Answer It's a shadow! :::

::: spoiler Answer Century :::

::: spoiler Answer Fire :::

::: spoiler Answer Pole-light. :::

::: spoiler Answer A candle. :::

::: spoiler Answer A piano. :::

::: spoiler Answer A sponge. :::

::: spoiler Answer A coat of paint :::

::: spoiler Answer A Key :::

::: spoiler Answer Everything is nothing :::