Pitaya is a fruit of a ...

All veg­etable oils don't contain choles­terol. Choles­terol is a type of lipid molecule and occurs in animal cells, so only animal fat like butter or lard can contain it.

Carbon dioxide is produced by bacteria feeding on the lactic acid. In the Middle Ages, the holes were con­sid­ered a sign of im­per­fec­tion and cheese makers would try to avoid them.

None. The normal col­oration of lobster is dark bluish green to greenish brown, redder on the body and claws, and greener on the legs. An es­ti­mat­ed one in 2 million lobsters are blue. All of them turn red after cooking.

In Estonia. People ap­pear­ing in the south-east of Estonia. The ancient ethnic group, which has a distinct culture, language and other beliefs, was also able to preserve its tra­di­tion­s, even though it was torn out of Estonia and in­cor­po­rat­ed into the USSR. The name of the group is most likely from the Estonian lan­guage, from the phrase "ei see, ei too" ("ni ni, sio"), which meant "neither an Estonian nor a Rus­sian".