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

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

If you say my name, I will no longer exist. What am I?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

What is the word or phrase?

Which country gets ill every time?

How many times in a given day, minutes and hour clock comes in a straight line ?