They are all garbage..
Regarding the mathematical hoaxes.. It is like the scientific ones
The scientific ones have been more publicised by muslim propagandists, and thus have been dealt with more though. Including the scientific mistakes mohammed copied from the greeks.
They produce 1001 things, so if 3 are proven wrong, they list 100 others.
For example, the claim you mentioned that the word day appears 365 times, is a hoax. It takes time to examine it though.
http://answering-islam.org.uk/Religions/Numerics/365hoax.htmlIt actually appears over 400 times.
You cannot test these things properly unless you know arabic to a reasonable level. This is why western audiences believe it. And muslims that know it is a fraud do not publicise that it is, because they want peopel to be brought to islam - even for the wrong reasons is fine. They don`t want people turned away.
Regarding the so-called prophecies..
The one about israel is from the bible
Mark out the ones that have not been fulfilled.
Alot of them just predict more bad - war and killing and honouring of wealth. The truth is that the world is alot better than it was in mohammed`s time.. (remember, mohammed raided caravans for wealth!!, and married a rich middle aged woman!). But in every age people think things have gotten worse than it used to be. And anyhow, it is a 50/50 and quite subjective. So this is not much of a prediction. And you can say it will be really bad. But relative to what? To 20 years ago, to mohammed`s time, e.t.c. You can fix it so it reads true.
I had a muslim friend who used to wonder about the prophecy that men will have tails. What it meant.. In retrospect, it was obviously taken from the idea that things will get worse. And christians view the devil as having a tail.. Another islammic prophecy that will remain unfulfilled.
They predict things getting worse, to scare people into becoming muslim.. Because times are always bad. The muslim friend I had was convinced the end of days were coming within the next few years. 5 years for sure! Because things were bad. I placed a bet with him that it won`t even occur in 10 years. But since I cut off contact, I won`t collect! He actually became religious because he was having vivid nightmares of armegeddon. He did since go less religious as time went on! I have no idea where he is now.