Can you name an animal whose killing cannot be performed without spilling your own blood?

There are two beautiful yet remote islands in the South Pacific. The Islanders born on one island always tell the truth, and the Islanders from the other island always lie.
You are on one of the islands and meet three Islanders. You ask the first which island they are from in the most appropriate Polynesian tongue, and he indicates that the other two Islanders are from the same island. You ask the second Islander the same question, and he also indicates that the other two Islanders are from the same island.
Can you guess what the third Islander will answer to the same question?

How many times do a clock's hands overlap in a day ?

How many triangles are there in the picture below?

What will you call your mother's brother's brother-in-law?

Why do people go to bed?

Find the next number in the series.
1 10 24 43 67 ?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

What number divided by 4 is the same as that number minus 4?