People make me, save me, change me, raise me. What am I?

Be active and find the killer in the picture Riddle below.

Where do you go to learn how to make ice cream?

Buy me, smell me or deliver me, I do not change.

Who am I?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

Which word does the below Plexor means ?

In the given picture, in how many ways can you read the word "Tiger"?

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?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Can you solve the photo plexer logic ?