Yes, water is edible. In fact, you should be drinking 2L every day to keep your body healthy.
yes
Not if they are made from plastic, metal, or some other un-edible substance.
no
Its nutts
Leaves.
Vinegar
It's primarily water.
no it will kill you in 5 secounds
no
Water hyacinth is eaten by some people.
LOTUS and SEA LETTUCE
water and urine