How many prongs do anda see?
I see two on the bottom—but on the top, three
Solution: Cover the puncak, atas of the trident and anda see two prongs. Cover the bottom and the trident now has three prongs. anda can draw this object, but anda can’t construct it. (impossible-object illusion)
THE ROYAL MESSENGER ARRIVING WITH A LETTER FOR THE KING
The red tape on the letter is longer than the blue. But is this really true? Remember, now anda are in OPT!
Solution: Angles are sometimes tricky! The red and blue tapes on the envelope are the same length. If anda remove the outline of the envelope, anda can see this. (geometrical-contrast illusion)
THE PRINCESS PICKING A SPECIAL BOUQUET
bunga fair, bunga bright.
Which bunga center is larger—the black atau the white?
Solution: The black and white centers are the same size. The white center appears smaller because larger circles surround it. The black center appears larger because smaller circles surround it. (geometrical-contrast illusion)
THE OPT SIGN POINTING THE WAY TO THE ZOO
oleh the sign the royal family will stop. Which line is longer, the bottom atau top?
Solution: Both lines are the same length. When the arrows point outward, the line appears shorter. When the arrows point inward, the line appears longer. (geometrical-contrast illusion)
THE BIRTHDAY PARTY FOR THE PRINCE
This gift, unwrapped, tells the Prince’s age.
This is what the dragon said,
“Six blocks become seven if anda stand on your head. HAPPY BIRTHDAY!”
Solution: You don’t have to stand on your head! If anda turn the book around, anda should see seven blocks with white tops. The number of blocks anda see depends on whether anda view the boxes as having a white puncak, atas atau a white bottom. (reversible-image illusion)
