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 ?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

What you cannot hold but it is yours?

Can you divide the below-given shape into four equal and identical pieces?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

81 x 9 = 801. What must you do to make the this equation true?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Spot 5 differences in two Christmas tree below: