Identify the stamp used for printing the sample (in blue) from the options given below.
Key fact. A stamp prints a mirror image of itself (left–right reversal). Any further rotation of the stamp does not change this mirror relation; the print just appears rotated accordingly.
Apply to the sample.
The printed word shows the letters B E in their normal reading order, with the small star above (near the top edge). Therefore the stamp that produced it must have the letters arranged so that, when mirrored, they appear as a normal “BE”.
Among the choices, only (B) has the letters oriented such that a mirror-print yields the normal “BE” with the star above. Options (A) and (C) have a mirrored “ƎB” layout, whose print would read “\(\text{E}B\)” reversed, and (D) would also print incorrectly with the star position inconsistent. Hence the stamp is \(\boxed{(B)}\).
Pick a point on the outermost ring of the maze. Each point indicates the direction of your next move. Which outermost point should be your starting point to reach Home in the fewest steps?
Shown are schematic diagrams of a regular door latch. $X$ is the door, $Y$ the frame. Identify which latch can correctly lock the door.
If the given flat shape is revolved about the $Y$-axis by $360^\circ$, identify the solid that will be generated.
At left is an empty glass with a straw in it. From the options, identify the correct view of the straw when the glass is half-filled with water.
Identify the most accurate shadow of the object given below. The arrow indicates direction of light.