How can you tell a raw egg from a hard-boiled egg?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Which Burger Is Different in below image?

Why are all black people so quick ?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

You can see three almost identical images below. Can you spot the odd one out from them?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

Which fur should we be getting from the Lion?