I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

What do you answer even though it never asks you questions?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

How many letters are in the alphabet?

Solve this riddle by finding the odd one out from the rest.

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

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.

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?