1. **Problem:** Find the surface area of the first cuboid with length $8$ cm, width $5$ cm, and height $5$ cm. 2. **Formula:** The surface area $A$ of a cuboid is given by: $$A = 2(lw + lh + wh)$$ where $l$ is length, $w$ is width, and $h$ is height. 3. **Calculate each term:** $$lw = 8 \times 5 = 40$$ $$lh = 8 \times 5 = 40$$ $$wh = 5 \times 5 = 25$$ 4. **Sum the terms:** $$lw + lh + wh = 40 + 40 + 25 = 105$$ 5. **Multiply by 2:** $$A = 2 \times 105 = 210$$ 6. **Answer:** The surface area of the first cuboid is $210$ cm². --- Since the user asked for multiple cuboids, the total distinct problems are 3, but only the first is solved here as per instructions.