"Do you believe in prayers?"

What is the meaning of prayer to you?

Worship, to me, is like building a relationship with one's nearest and dearest. Making, and striving for, a heart connection with your original Creator. Trying to keep that relationship strong, it all comes down to worship.
And worship can be by doing everything that pleases your Creator, such as:
Prayer, asking Him, obeying His Messengers, following the ways of His Messenger, i.e. living, treating parents well, telling the truth, not bothering the neighbor, keeping cleanliness, etc.

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Do you think it's necessary to pray, and how many times should one pray.

Why not it is important, worship is extremely important, I am a Muslim so I try to practice Islam. Worship is mandatory in this and how can I explain it.

First of all, there are five daily prayers which are obligatory for every Muslim at fixed times. Then after that, it is easy to do as the Prophet has said and the whole life, sleeping, waking up, eating, drinking, walking, standing, standing, sitting, speaking, keeping silent all becomes worship itself. There is also hope of reward for every action.

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Are there some supernatural things prayers can do ?

I know other religions as well as my true religion. If you are a follower of any other religion, it is only an illusion that you have gained something because of your worship.
There is definitely something supernatural in worship, and it has a result, but it is not necessarily that you will get the result every time. Sometimes you have to be patient for it, sometimes you have to be happy and sometimes you have to be sad. Will have to deal with. Similarly, sometimes after praying, certain things will be seen happening, and sometimes nothing will be seen.
Sometimes you worship, it will seem that what you want has come up, sometimes your endurance will be tested. And this endurance will also make you worthy of reward and reward. In the same way, all this means that the Creator tests your belief whether you believe in me or believe in the world. This is what patience and testing means.
Then He understands better and makes you rich in this world and will keep you well in the Hereafter. And never gives anything in this world and will give more in the hereafter.

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Do you believe that unanswered prayer is caused by sin? If yes prove your answers, If otherwise back your answers up.

Sin is not related to worship in the way it is supposed to be. Dua is not accepted because of what sin is. There is one thing and one sin due to which dua is not accepted even in the worst condition. And that is the condition when the whole body of a person is fed by forbidden earnings.
Apart from this, there is no sin that cannot be forgiven. If the creator had actually rejected someone's dua because of sins, then everyone would be on the street today, and there would be no scientist, no rich person, no one waiting for their dua to be accepted. That he was no longer allowed to do so. Because how can he pray after committing a sin? Sin is an obstacle to the fulfillment of prayer.

Therefore, it has been proven that I do not know of any other reason in Islam that prevents the fulfillment of the prayer. And even if there is a reason other than this, it has been proved that there is no connection between sin and the acceptance or non-acceptance of worship and dua.

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I invite @rafk @pink-ring and @amnasafdar to participate in this contest by @okere-blessing.