Which figure is this if the piece of cardboard shown below is folded along the dotted lines? (Rectangular prism / Triangular prism / Square prism)

What cross section will you get if you give vertical cut to a circular pipe given below?

How many cubes are used to make the $3-D$ shape given below?

When the given net of a cuboid is folded to make a cube which side will join to side $DE$?

Net of a dice is given below.

What will be the number of dots on face $\mathrm{X}$?

The net of a dice is given below.

What will be the sum of the number of dots on faces $Z$ and $Y$?