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 ?

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.

Two friends were stuck in a cottage. They had nothing to do and thus they started playing cards. Suddenly the power went off and Friend 1 inverted the position of 15 cards in the normal deck of 52 cards and shuffled it. Now he asked Friend 2 to divide the cards into two piles (need not be equal) with equal number of cards facing up. The room was quite dark and Friend 2 could not see the cards. He thinks for a while and then divides the cards in two piles.

On checking, the count of cards facing up is same in both the piles. How could Friend 2 have done it ?

Decode this picture on T-Shirt and tell what it says ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

O_er_t_o_

Complete the missing letters of the given word.

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you make a fire with just a single stick?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?