You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

The host of a game show, offers the guest a choice of three doors. Behind one is a 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?

What is next number in the pattern below:

131 517 192 123 ?

Decode below three cipher riddles:

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

How many sides does a circle have?

Which word does the below Plexor means ?

How many times can you subtract the number two from the number fifty?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?