One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Can you solve this picture maths equation?

Find the missing number in the series below

13 -21 34 -55 ? -144

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

What month of the year has 28 days?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?