Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
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It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

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?

What goes up but never comes down?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?