A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

People make me, save me, change me, raise me. What am I?

Spot the cat in the picture below

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Why do we preferably have round manhole covers and not square ones?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?