nespresso milk frother Riddles

My first letter is in cloud, but never in sky. The second is in roll but not in lie, My third letter is in water but not in trees. My whole makes you milk, kefir, and cheese. What am I?

Marble walls as white as milk, lined with skin as soft as silk, in a fountain crystal clear, a golden apple will appear, there is no key to this stronghold, yet theives break in and steal the gold. What is it?

A wealthy man lives alone in a small cottage. Being partially handicapped, he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening, he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?

An old man, Dave, lives alone in a flat. Because of his age , he is not able to move comfortably and hence most of the things used to be delivered to his house. On Friday while delivering the mail, the postman feels something suspicious in the flat and try to look inside through the key hole and he saw the bloody body of the old man. Homicide arrived the scene. On the outside of flat, they find two bottles of warm milk, Tuesday newspaper, some unopened mails and some gifts. Homicide waste no time and find the murderer almost immediately. How did they do it, and who was the murderer?

There are five houses in a row. Each house is painted a different color and has a person of a different nationality living in it. Each person drinks a different beverage, smokes a different type of cigar, and owns a different animal as a pet. Using these 15 clues, which person owns the pet fish? The Brit lives in the red house. The Swede has a pet dog. The Dane drinks tea. The green house is directly to the left of the white house. The person in the green house drinks coffee. The person who smokes Pall Mall has a pet bird. The person in the yellow house smokes Dunhill cigars. The person in the center house drinks milk. The Norwegian lives in the first house. The person who smokes Blends lives next to the person with the pet cat. The person with the pet horse lives next to the one who smokes Dunhill. The person who smokes BlueMaster drinks beer. The German smokes Prince. The Norwegian lives next to the blue house. The person who smokes Blends has a neighbor who drinks water.