Is “as easy as falling into a pool” a idiom, simile, metaphor or alliteration

1)what was the first thing that cast doubt on the authenticity of the king being peter wilks's english brother? a)his refusal to answer questionsb)his arrival in town in a canoec)his illiteracy and inability to writed)his lack of knowledge about the wilks family 2)how did huck escape the clutches of the angry townspeople? a)he told them where the gold was. b)he ran off while digging up the body. c)his captor released him while running to see the gold. d)his captor sent him away because he did not want to share the gold.

Ineed advice. i have a lot of friends at school but recently my best friend for some reason didn’t like our friend group. she wanted to switch to a new table during lunch. she said she found a new table where we would be welcomed if i wanted to come. i agreed because i knew i would continue to talk to them outside of lunch. after a month or two, my best friend got mad at our new lunch table group. so she left for a day or two, but i stayed because i actually kinda liked it there, even if it was kinda crazy. then she came back to the table. eventually i started to miss my old friends at my old lunch table. so i went over there for one lunch. then after lunch i sat at my new lunch spot before the bell rang. they all called me a traitor. so now i sit with my old lunch group, which is fine because i missed them, but i also miss my new, now old, lunch table. what should i do? p. s. sorry if you loose your last brain cells trying to understand this.

What is the metaphor used for captain beatty? what is he being compared to?