The guitar itself is not forbidden. What and when you are using it for could be forbidden or not. If using it distracting you from something else more useful for you or for your community or distracting you from ritual praying or worshiping then it is forbidden. Otherwise, if for reasonable time relaxation or for licit social event then it is not forbidden.
Some musics are Haram. it depends on type of music. not the instrument.
No, bananas are not forbidden in Islam. Non of the fruits are forbidden in Islam.
Who said it was forbidden in Islam? Everything in Islam is permissible until proven impermissible.
no, ballerina itself is not forbidden in Islam. what's forbidden in Islam is the concept of a woman dancing in front of men who are not related to her (as in she can marry them).
No. It is not forbidden.
It is haram to gamble in Islam
no
Everything that is Haraam in Islam is simply forbidden. And what is Haraam? Allah in his infinit wisdom knows entirely so as to why something is forbidden. But through logic and sence, we can understand that of what is forbidden has countless reasons known and unknown.
100% forbidden in Islam. No doubt about it.
riba means interest and is forbidden in islam.
No. It is better not to do so. Anyhow, it is not forbidden in Islam. Islam does not impose unnecessary restrictions.
Icons were thought to be a use of worship forbidden by God.
Suicide is strictly forbidden in Islam.