Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What does this rebus puzzle means ?

I am an odd number. Take away a letter and I become even. What number am I?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Different lights make me strange by changing me into different sizes. What am I?