What does the below image rebus riddle means ?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

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

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

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?