You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

What does this rebus puzzle means ?

People make me, save me, change me, raise me. What am I?