The air in water bottle expands
Then the bottle contains a dilute juice . . . a mixture of juice and water.
They will die.
the volume of water increased when the water is froze
Water turns to ice.
Not much will happen if you put a glass bottle containing teaspoonful of water in it in the sun with its lid closed. It might evaporate.
The air will rise into the upper bottle in bubbles while the water splatters and drips down into the lower bottle. No vortex is formed.
Put it in boiling water
A full bottle, with a tight lid? Bad idea. Think about why icebergs float, then work out what will happen to the water in the bottle as it freezes (in fact, as it passes below about 4C).
it would go in
you have an orgasim
If burning, the candle will use up all the oxygen and go out.
Yes, simply refreeze the water. Leave a bottle of water outside on a freezing night, it will be solid ice in the morning. The same would happen if the bottle of water was put into a freezer.