Which word does the below Plexor means ?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Solve this riddle by finding the odd one out from the rest.

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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)?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

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

What is wrong in the below Picture?

Move four matchsticks to the below square to form three squares?