Logic Puzzle cases

The Tripling Algae★☆☆about 5 minMultiplying a Hundred Numbers★☆☆about 5 minCutting a Sausage into 11★☆☆about 5 minThree Eggs★★★about 5 minThe Barbecue Bill★★☆about 5 minThe Book and the Bookmark★☆☆about 5 minBreaking a Chocolate Bar★★☆about 5 minThe Colored Dice★★☆about 5 minThe Pirates' Share★★★about 5 minFive in a Line★★☆about 5 minTimes Four, Reversed★★☆about 5 minFive Sisters★☆☆about 5 minThree Cards★★★about 5 minCoffee and Milk★★☆about 5 minTen in a Circle★★☆about 5 minWho Ate It★☆☆about 5 minPaths on a Grid★★☆about 5 minPredicting the Ranking★★☆about 5 minThe Slow Clock★★☆about 5 minHer Phone Number★★★about 5 minHow Rabbits Multiply★★☆about 5 minThe Medicine Bottles★★☆about 5 minTest Scores as Equations★☆☆about 5 minWays to Climb the Stairs★★☆about 5 minAngel, Devil, and Human★★☆about 5 minSplitting the Bundles of Cash★★☆about 5 minSum Equals Product★☆☆about 5 minTrading in Empty Bottles★★☆about 5 minHints to the PIN★★☆about 5 minThe Portrait in the Three Caskets★★☆about 5 minThe Phantom Thief X's Testimony★★★about 5 minA Rope Around the Earth★★★about 5 minThe Trains and the Bird★★☆about 5 min