There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

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

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?

Name a key which is hardest to turn.

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

It belongs to you, but other people use it more than you do. What is it?

How many triangles can you find in this given picture?

Below, you can see some coding:
January = 1017
February = 628
March = 1335
April = 145
May = 1353
June = 1064
July = 1074
August = 186

Now deciphering the way it has been coded, can you find out how September will be coded?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?