Most of what people regard as contradictions are actually their own ignorance combined with somewhat inadequate information. I think that's probably the case here. The book of Matthew was written by Matthew. Acts was written by Luke. You're comparing two different points of view. Judas hung himself near a cliff the branch to which he tied the rope breaks and his body falls to the rocks below where it breaks apart. Did he die from the hanging or the falling? Two different points of view.
Regarding the creation record as it occurs in scripture. The sun and earth were likely created long before the first creative day began. Genesis 1:2, the earth was formless and there was a darkness on the surface of the watery deep. Gen 1:3, some translations read "Let light come to be." JW Watts translation says "gradually light came into existence". This is appropriate as (and you probably know this) the form of the Hebrew verb involved means a "gradual occurance". Perhaps a mixture of water vapor, gases, and volcanic dust prevented the suns light from reaching the earth. This began to clear gradually from the first day, as God proceeded with other creation, and had cleared enough by the fourth day that the sun and moon and stars were clearly discernable.
Why you would think that reading the bible in Arabic would help you to understand it better is beyond me. Do you think that the Arabic versions you've read have undergone any fewer translations and revisions than the English??
The idea that you have more respect for the "Qur'an" than the Bible, betrays your thinly veiled ignorance. Abraham is the "father" of all three of the religions that you mentioned. I would actually categorize them as two religions as according to scripture Jews should actually be Christians, and of the two religions, Islam is the newest. Many texts in the Qur'an are biblical ripoffs. Muhammed wrestled with an angel. Sound familiar?
BTW if you're actually pursuing a Phd. You should try to use the words "contradict" and "contradiction" in the proper context.