Instructions:
Shown on the left is a character-based design of a product. Inspired from this product, re-imagine, conceptualise, and render the tea flask given on the right. Make it clear and visible. 
Evaluation Criteria
Characterization of the product
Relevant details and usability
Quality of sketching
Surface shading/rendering
Solution Explanation:
The tea flask design incorporates humanoid robotic features, such as expressive eyes and articulated arms, blending functionality with creative aesthetics. A sleek metallic finish is applied, ensuring durability and usability. Surface shading enhances the form, creating a visually appealing and practical product.
Shown on the left is a set of equations. Which option belongs to the same set? 
Shown below is an arrangement of closely stacked spheres. Assume each one to be in contact with its immediate neighbour. What is the total number of points where the spheres touch each other?
The 12 musical notes are given as \( C, C^\#, D, D^\#, E, F, F^\#, G, G^\#, A, A^\#, B \). Frequency of each note is \( \sqrt[12]{2} \) times the frequency of the previous note. If the frequency of the note C is 130.8 Hz, then the ratio of frequencies of notes F# and C is:

