Making a bequest to give all one's wealth in charity

Q:

1. My grandmother passed away last week. Before she passed away, her will was to give her savings (money) to charity. However my grandmother has 3 daughters and my grandfathe... My mother is the eldest of the daughters, however she is not psychologically sane and my grandfather has dementia. How do we distribute it?

2. Do we divide it amongst the daughters and ask them if they want to give it to charity if they don't need it or do we just give the whole amount to a charity organisation? 

3. If we have to give it to the daughters and my grandfather, what do I do in the case of my mother and grandfather as they not psychologically sane. Does the grandkids get the amount as well?

Inheritance

Q: A friend of my brother passed away and left behind a mother, wife, 4 brothers and a sister. His brother had an investment of a million rand which would be paid out in the near future insha Allah. He asked me to find out what is the split of inheritance between the family. How much does each individual get?

Taubah for making gheebat

Q: I've made gheebat of many people but now I have repented.

1. Is it necessary to ask them for forgiveness as they do not know that I've made gheebat about them?

2. If I've made gheebat about somebody many years ago and they knew about it at that time but most probably forgot it now, do I have to ask them for forgiveness?

Opening a kids entertainment area

Q: I am a businessman from Pakistan. I was looking into a new business opportunity which is in the kids entertainment industry. I was keen to know whether this sort of business is halal or not.

Basically we are looking into opening a kids play area which will have a softplay area and will have a few games like sports e.g. rock climbing or similar games. Mainly our focus will be kids of all ages but we are expecting teenage girls and boys as well. We won't be able to segregate the play areas.

Secondly, we might also have video games which include cartoon characters and some small rides for kids which are shaped as animals or cartoon characters. I am fully aware that music is haram so we are not planning to use any kind of music in the background.