A: 24/12 Outwell Advent (outdoor and camping gear)

Sophie56

Day 11 - Margate Storage Box

Answer:- Quick

Outwell Advent Calendar Competition 🎁 (leadfamly.com)

EmilyK1983

Day 12 - Aruba Cupboard

Answer: 12 L

https://outwell.leadfamly.com/christmas-calendar-2021 

Ms_Dee

https://outwell.leadfamly.com/christmas-calendar-2021 

Spot the difference: you have to click on the second picture where it is missing, you only get three clicks but you can try again.
Vase on table behind little girl
Little girls sun hat
Ball in the water on the right of the picture.

Prize: 

hertzyabazas

Day 14 - Carnelian DC 600 Lantern

https://outwell.leadfamly.com/14-december-2021

Answer - SYSTEM

Claire_x

Day 15 - Dreamhaven single 7.5cm (air mattress)

https://outwell.leadfamly.com/christmas-calendar-2021

Answer - With solar power or Micro-USB input

Claire_x

Day 16 - Excellent Double (air mattress)

https://outwell.leadfamly.com/christmas-calendar-2021

Answer - Oak Supreme

EmilyK1983

Day 17 - Tulip Dinner Set (4 person)

https://outwell.leadfamly.com/christmas-calendar-2021

Answer - 2 bedrooms

Claire_x

Day 18 - Custer round (folding table)

https://outwell.leadfamly.com/christmas-calendar-2021

Spot the difference
- Object missing from small table near woman sitting
- Bin missing near standing woman
- Tree branches missing from above tent

Soozybee

Day 19 - Outwell Oak Supreme Sleeping Bag

https://outwell.leadfamly.com/christmas-calendar-2021

Answer 200 cm

JustJMD

Day 20

https://outwell.leadfamly.com/20-december-2021
Gas cannister under outside table
Bikes on roof
Bottle on inside table (Middle of tent)