Riddles, one at a time
Two Jugs: 4 L and 9 L
Filling, emptying or pouring a jug counts as 1 move each. Fewest moves to get exactly 6 L in the 9 L jug?
Pour from the full 9 L jug into the 4 L jug twice.
8 moves
Fill 9, pour into 4, empty 4, pour again (1 L left), empty 4, pour in the 1 L, fill 9, top up 4: 6 L.
What Am I? Teeth but No Bite
Which object fits all three clues?
A comb and a saw have teeth too. Check clues 2 and 3.
Key
It has teeth that never bite, opens what is shut and lives on a key ring: D.
Lemon, Tea and Dates
25
Lemon 10, cup 5, date 2. Multiply first: 5 + 20 = 25.
Inside the Loop: The Trapped Gem
Which gem is INSIDE the loop?
Count wall crossings on the way to the edge: odd means inside.
B
Gem B is inside; A, C and D sit in pockets that open to the outside.
One Piece Fits
Pieces may turn but never flip over. Which piece fills the hole?
PIECE C
Turn C a quarter turn: it drops right in.