For better understanding things about the quran see HERE and HERE.
https://www.youtube.com/watch?v=vpWq73D05gQ
https://www.youtube.com/watch?v=V8ZImjzZlWw
https://www.youtube.com/watch?v=sZpfwrDS9XM
https://www.youtube.com/watch?v=KQ1rVVIDf5I
https://www.youtube.com/watch?v=wDKtjawYiu8
https://www.youtube.com/watch?v=s3hdYKwOq4U
https://www.youtube.com/watch?v=fbl3GXMBkRg
https://www.youtube.com/watch?v=4Vrg8y_sXvw
https://www.youtube.com/watch?v=5V-epaSjnM0
https://www.youtube.com/watch?v=dCzzwVUJGrk