What goes up but never comes down?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

what one word does the below rebus identifies?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

If six children and two dogs were under an umbrella, how come none of them got wet?

Find the hidden tiger in the given optical illusion ?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?