Flowers for the lady (if you were invited by a couple)
If it's a bunch of guy ; nothing
You could get him a gift card to his favorite store.
Invite someone else if you can then just ask if she wants to go to dinner with you and whoever else you invited.
No you do not take a gift to a dinner party when you are a guest of honor. You are the focus point of the dinner party. However, after the event you should send a note of thanks to the hostess.
Usually, if you were invited to dinner, you don't have to pay; however, it is polite to offer anyway.
"Many were invited, few were chosen." Parable of the dinner of sinners
Not unless it is a birthday or other celebration. If in doubt, check with the hostess.
He is invited to the Murray's house for dinner.
That depends on who is hosting the dinner, and the type of dinner. If you are being invited to a casual dinner at your brother's house, asking that question might be considered acceptable under certain circumstances. If the dinner in question is anything more formal than that, you should not ask. Asking such a question makes you appear to be snobbish and elitist.
Heck, no. In fact, it would be quite weird for someone in that situation to (explicitly) present such a gift as a requisite token simply for an invitation to continue socializing.
The family invited their neighbor to dinner, but the neighbors didn't show up
If You weere invited, but can't come, then yes. If you weren't invited, then you decide if you wanna give a gift
yes they are invited it depends thou if they want to come or not.