Generally speaking, it is perfectly safe to drink water after eating something hot. If, however, you suffer from temperature sensitive teeth, then the temperature difference between hot food and cold water could cause you pain in your teeth. Of course, temperature sensitive teeth can be de-sensitized by the use of the right kind of toothpaste (potassium enriched).
Drink water
if your thirsty... but if your not thirsty u shouldnt because u will probably wet the bed
There is no harm in having water after eating guava.
Yes you can. There is nothing wrong with eating a banana then drinking water.
they can drink as long as 20 min.
You don't have to. But it is ideal to keep a drink at hand in case your throat becomes dry, in case you have difficulty breaking down food or in case something gets lodged in your throat.
Drink water during the time you are not eating LOTS OF WATER
No it is fine.
Water
drink lots of water
you might explode
Try eating bread then drink water.