My question might appear silly and pointless to some, but I find it pretty interesting myself.
If we look at the word 'circus', it has 3 consonants and 2 vowels. However, the 2 c in the words are pronounced in a different manner. The first has sound of s as in 'hiss', while the second has the sound of k as in 'kit'.
Also, the vowel i and the vowel u are pronounced the same, although they are not the same. Both, in this case, are pronounced as u in 'cut' or 'upper'.
There are even more examples of such confusions, such as the use of ph vs f in 'graph' and 'fish'.
Why is it so? Why is it so that in English, such discrepancies in pronunciations exist? Is it because most English words are derived from different languages, Latin and Greek?
PS: On a side note, I just want to say that in my native language, Hindi, it doesn't happen. Even if such differences do exist and I just don't know about it, they're rare.