You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Find the missing number in the image below.

Why is it very easy to weigh a fish?