The Cube can be solved by only having to learn 4 algorithms. This is not the fastest method, but you can improve your speed and learn new algorithm and tricks once you learned this method.
This guide will get the cube done and with practice you will be able to solve the cube using this method in about 2 to 3 minuttes.
It's quite hard to do it faster as this method requires 120 to 140 moves to complete, but on the other hand you only need to learn 4 algorithms instead of aprox 78.
In this guide we will use the following names for various parts of the cube please get familiarized with them.
LAYERS

- This is called the TOP LAYER

-This is called the SECOND LAYER

- This is called the BOTTOM LAYER

- This is called the FRONT LAYER

- This is called the MIDDLE LAYER

- This is called the BACK LAYER
PIECES

- This is a CENTER piece

- This is a CORNER piece

- This is a EDGE piece
COLORS
Most of the illustrations won't show colors on the cube and that's because they are not important in these scenarios and could be any color as it does not matter.
For this method on solving the cube you only need to memorize 4 algorithms as shown below.
Right let's begin.
First you need to create a white cross.
Note This guide does not cover this part as most people are able to do this.
The EDGES of the white cross should match with the color of the CENTER as shown in the picture above.
Once the white cross is done turn the cube upside down so the white cross is at the bottom.
Note: We will work on most of the cube with the white cross on the bottom for the rest of this tutorial.
With the cube turned so the white cross is at the bottom it should look something like this.
Find a CORNER peace with white on it. In this example we will use a corner with white, blue and orange on it (but it could be any colors) as we have to do all corners. The important thing is that the corner has white on it as well and the EDGE matches the CENTER at both sides (the corners don't have to be flipped correctly as long as the colors match). Turn the layer so that the corner is located between blue and orange center like one of these images below.
The rules are:
If you cannot find a white corner cause they are all at the bottom layer, just take any corner piece of what ever color then hold it to the right and do a RIGHTY this moves the corner to the top and you can now proceed using one of the algorithms above to put it in the right place.
Do this for all corners with white on them until all corners are done.
Look for a EDGE that needs to go on the second layer either to the right or to the left. As you can see in the image below the EDGE needs to go to the second layer to the right. The RED EDGE needs to go to the right where the RED CENTER is.
If the EDGE goes to the right
like the image above we turn the top layer 1 step to the left and then we do a RIGHTY.
+
NOTE Now go back and solve the corner that needs solving as we learned earlier.
If the piece goes to the left
like the image above we turn the top layer 1 step to the right and then we do a LEFTY
+
NOTE Now go back and solve the corner that needs solving as we learned earlier.
If you don't have any piece that you can move either left or right then just select a random TOP EDGE and move it either to the left or right on the second layer using the method above, this will free an edge piece and you can proceed.
Do this for all edges until the second layer is complete.
We will start by creating a yellow cross like above.
If your cube has a hook on it then ROTATE THE TOP LAYER so that the hook is in the back left. If the hook faces correct after turning the top layer like the image above then TURN THE FRONT LAYER CLOCKWISE then do 2 x RIGHTY and then TURN THE FRONT LAYER COUNTERCLOCKWISE
NOTE If the hook faces in another direction after putting it in the back left, then we cannot use this step and we proceed to the steps below.
If you have a line TURN THE TOP LAYER so it's faces from left to right (horizontal) when you hold the cube.
Then TURN THE FRONT LAYER CLOCKWISE then do a RIGHTY and then TURN THE FRONT COUNTERCLOCKWISE
You should now either have a yellow cross or a yellow hook. If you have a yellow hook solve the hook as you learned earlier.
If your cube does not have a line or a hook, maybe just a dot or some random yellows then do the same steps you would do for a yellow line.
TURN THE FRONT LAYER CLOCKWISE then do a RIGHTY and then TURN THE FRONT COUNTERCLOCKWISE
You now have either a yellow line or a yellow hook you can solve.
Now we will fix the EDGES on the yellow cross.
ROTATE THE TOP LAYER and try to match as many EDGE pieces as you can with the CENTER (you can always match 2 edges)
If you have a line with edge across each other TURN THE TOP LAYER so the EDGES create a line away from you like above. Then we do a SUNE
You should now be able to align 2 EDGES next to each other like the image below.
If you have 2 EDGES next to each other turn the cube so the pair of edges are in the back and right. Then do a SUNE
You should now be able to align all edges like above.
Now we need to solve the yellow corners.
Turn the cube to see if any corners match (the corner does not have to face in the right direction as long as the colors of the corner matches) If you can not match any corners do a NIKLAS.
Now we should have at least one corner in the correct spot it does not need to face in the right direction as long as the colors of the corner matches)
When you have 1 corner in the correct spot hold the cube so the correct corner is in the front left. Then we do a NIKLAS
You will now have all corners in the correct spot if not you will have to do 1 more NIKLAS maybe 2 until all corners are in the right place.
Now we only need to flip the yellow corners.
TURN THE CUBE SO WHITE IS ON TOP
Turn the cube so that the white side is up.
Now hold the cube so that a corner that is NOT FLIPPED CORRECTLY is at the bottom right. Then just repeat RIGHTY until the corner is solved (flipped correctly)
Once the corner is solved TURN THE BOTTOM LAYER to the right DO NOT TURN THE CUBE until the next corner you need to solve is at the bottom right. Then again repeat RIGHTY until the corner is solved. Repeat for all corners.
Note: If you come across a corner that is solved already, just turn that corner to the right DONT TURN THE CUBE and repeat solving corners using RIGHTY
There we go all done.
Once you know how to place the pieces there is a smaller guide only without annotations on how to solve the cube [Here] or even faster once you can solve the cube [Here]