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

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

what does this picture(rebus) riddle means ?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

What is the next number in this series?

4,12,84,3612....

What does this simple rebus mean?

Through your logical capabilities, can you make 7 an even?

Why is the Hole below a Lock?