@SnugSmug i'm not going to look into every single one but i'll do a couple.

from "baba/bava kanma 113a:"

"Rav Ashi said: The mishna issues its ruling with regard to a gentile customs collector, whom one may deceive, as it is taught in a baraita: In the case of a Jew and a gentile who approach the court for judgment in a legal dispute, if you can vindicate the Jew under Jewish law, vindicate him, and say to the gentile: This is our law. If he can be vindicated under gentile law, vindicate him, and say to the gentile: This is your law. And if it is not possible to vindicate him under either system of law, one approaches the case circuitously, seeking a justification to vindicate the Jew. This is the statement of Rabbi Yishmael. Rabbi Akiva disagrees and says: One does not approach the case circuitously in order to vindicate the Jew due to the sanctification of God’s name, as God’s name will be desecrated if the Jewish judge employs dishonest means."

in a really simple nutshell, you have one camp that says you can lie to a gentile if they are trying to collect tax money from you and if they try to take you to court, they will lose the court case because it is their law that they can be lied to. but you also have another camp that says that's in bad form because being dishonest is going against God and His will.

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the one from "sanhedrin 54b" that talks about having sex with children is just completely false and out of context. it talks about homosexuality and bestiality being punished, but that if a boy is less than 9 years old he cannot be punished for it, as that is the age of accountability.

i'd wager that most of these are probably something like that, cherry picking some stuff or misconstruing things to make them sound worse than they are.

here's an ongoing translation project if you're interested in checking others yourself: https://www.sefaria.org/texts/Talmud