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 ?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

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

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Who has married many women but was never married?

What is next number in the pattern below:

131 517 192 123 ?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?