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 \(\boxed{(B)}\).


Count the number of squares in the given figure. 
Count the number of fonts used in the given set of words. 
Count the number of squares in the given figure. 
Shown below are three types of interlocking rods. There are in total 12 rods: 6 of type A (8 cm), 2 of type B (5 cm), and 4 of type C (4 cm). What is the maximum straight length obtainable by connecting the rods appropriately?
Based on the excerpt on Indonesian Shadow Puppet Theatre: 
Shown below is a belt–pulley arrangement. How many pulleys are rotating clockwise?




