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Riddles, one at a time

I am a three-digit number. My three digits are all different, and they multiply to 6. I am even, and I am less than 200. What number am I?

Text · Medium Challenge link
Answer

132

Different digits that multiply to 6 can only be 1, 2 and 3. Below 200 means starting with 1: 123 or 132. Only 132 is even.

Which shape belongs in the middle?

Video · Easy Challenge link
Answer

C

Only the gold square has 4 sides AND is gold.

Pieces may turn but never flip over. Which piece fills the hole?

Video · Medium Challenge link
Answer

PIECE C

Turn C a quarter turn: it drops right in.

Which sheet was placed SECOND?

Video · Medium Challenge link
Answer

SHEET E

Order: C, E, A, D, B. Lift them off and see.

How long to cut the log into 5 pieces?

Video · Easy Challenge link
Answer

8 minutes

5 pieces need only 4 cuts: 4 × 2 = 8 minutes.

Shape Sudoku

Which of the six shapes fits the ? cell?

Picture · Expert Challenge link
Answer

DIAMOND

Solve the whole grid: only a diamond fits there.

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