Argos interview questions

Applied online, had an email asking me to attend an interview at a certain time and place. I arrived to find about another 20 people waiting. Had no idea it was a group interview so a little daunting as never had one before. Did icebreaker so find out and tell everyone the persons name sitting next to you, an interesting fact about them and what animal they would be. Then had to work as a group with people on our table to build a tower from marshmallows and spaghetti! Overall was ok just waiting on a reply now to see of i got through to the next stage of 1 to 1 interviews. Would of been nice to have known it was a group but in hindsight would of probably put me off going.