Hudson Fuggle interview questions

The interview questions were general what you would expect, I just had one in person interview. I was asked to do a written task in the room, I knew it was coming as she briefed me in an email but told me it was nothing to worry about. I had to write a social media post for Facebook, Instagram or Twitter for the company. I felt extremely on the spot. I don't know how many people can write high quality content like that in the 20 minutes I was given under the nerves of an interview. It feels very telling of company culture.