Can you identify the hidden rebus in the image below?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

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?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

I look at you, you look at me I raise my right, you raise your left. What am I?

Why is Saturday stronger than Monday?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

You need to arrange three 7 and mathematical symbols to form number 1?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?