The figure shows a 3×3×3 cube with 4 colours. Each colour corresponds to a sub-block detached and shown separately. Identify the correct red block shape.
A perspective object is rotated 180° about the y-axis, then 180° about the z-axis. Which perspective view matches?
Which of the options on the right can be formed by folding the profile shown on the left?
A paper strip is rolled and punched by a triangular punch. After unrolling, what pattern of holes would appear on the strip?
In a 3D structure made of cubes of equal size, an L-shaped hole is made by removing a few cubes, as shown on the left. Which of the 3D structures in the options on the right would successfully pass through the L-shaped hole, given that they are also made of cubes of the same size?
What is the total number of capital letter 'T' shown in the image below?

