Answer to your second question.
"Can Allah take any created thing out of the creation with out destroying it or uncreating it?"
Allah does not perform physical actions as we understand how physical actions take place.
To create something Allah only has to
_will_ and it comes into existence.
To destroy something Allah only has to
_will_ and it goes out of existence.
All the actions and process that take place in our universe requires function of time.
Allah(swt) is truly infinite ie unchanging and unchanging does not require function of time and hence Allah is outside of time and cannot exist in our universe in any form, size, or shape .
Since Allah(swt) is truly infinite his attributes and powers are also infinite.
therefore He does not require any assistance or help, He free from any kind of need, He has no partners or helpers, He is truly 'Self-Subsisting'.
Also Allah(swt) does not possess negative attributes.
For example :
Allah(swt) does not get tired nor does He sleeps or feel drowsy , He does not forget.
He requires no rest. He makes no mistake. He requires no help. He does not require to eat any kind of food for sustenance because he is free from all kinds of needs.
In Islam you can call Allah(swt) by any other name as long as the attributes or meaning does indicate negative attributes.
Allah(swt) is not everywhere rather He is aware of everything, The every step an Ant takes , even every rotation of an atom, every thought of all the human beings, he is aware of everything that exist or existed, nothing escapes his knowledge.
Before we understand how Allah(swt) created our universe let first understand how He controls it.
Our universe behave according to natural physical laws.
What exactly are these laws? do they have size shape or form?
Do they exist independently?
They are nothing but instructions for things on how to behave.
As a man of the house you have a law (instructions) that no member of the house is allowed outside the house after 10 pm in the evening and everybody follows the rule.
So how does Allah(s.w.t) controls the universe?
“ He created the sun, the moon, and the stars, (all) governed by laws under His command. Is it not His to create and to govern? Blessed be Allah, the Cherisher and Sustainer of the worlds!” (Al-Quran 7:54 )
To understand, you need to understand these three things.
Nothing goes against the will of Allah (swt).
What it means is that if Allah(swt) wills something to happen nothing, absolutely nothing can prevent it.
If Allah(swt) wills something not to happen nothing, absolutely nothing can make it happen.
Even a leaf cannot move without the will of Allah(swt).
For example scientists tells us nothing can move faster than speed of light.
What this means is that all the natural laws that governs our universe and everything else is nothing but the will of Allah(swt).
Scientists tells us that our universe started as a very very very tiny singularity .
"the universe grew from an almost infinitely small point to nearly an octillion (that's a 1 followed by 27 zeros) times that in size in less than a trillionth of a second. "
At singularity no natural laws existed and time began at singularity.
"The beginning of real time, would have been a singularity, at which the laws of physics would have broken down." : Stephen Hawking
http://homepages.wmich.edu/~korista/...ml#%3A~%3Atext
And this is how it goes... The creation of our universe.
Allah(swt) willed and singularity came into existence and from then on as our universe evolved through inflation and to present day, and it is still evolving through what we call physical laws (instructions) i.e. will of Allah(swt).
Originator of the heavens and the earth. When He decrees a matter,
He only says to it, "Be," and it is.
(Noble Quran 2-117)
Nothing can move faster than the speed of light this is Einstein's inviolable postulate of his theory of relativity.
If this actually hold true, than.
This is nothing but will of Allah(swt), ( If indeed it is so) that nothing can move faster than speed of light.
Therefore when we say not a leaf move or an atom rotate without the will of Allah(swt) it means, the laws responsible for the movement of leaf or an atom and everything in our universe is actually will of Allah(swt).
So Allah(swt) created and controls our universe through his will.
Allah(swt) can make things appear or disappear spontaneously simply by his will or He may make things appear or disappear through evolutionary process but again this evolutionary process works through will of Allah(swt).
Allah(swt) alone have absolute knowledge and He alone knows best.