ANSWER: This is not permissible as a believer is not a person who curses or uses obscene words or profanity and a person who curses would be deprived from interceding on the day of judgment as the prophet salla Allahu alaihi wa sallam has said.

Read more

ANSWER: It’s not permissible at all to participate with them in their kufr celebrations and gathering.  You can eat the halal food if they send it to you, without you joining them.

Read more