One example could be 'The Catcher in the Rye'. The main character Holden Caulfield's actions and thoughts can be seen as ambiguous. His rebellion and disillusionment are not clearly defined as either positive or negative, leaving readers to form their own interpretations. Another is 'The Perks of Being a Wallflower'. Charlie's experiences and the events that unfold around him have an element of ambiguity, especially regarding his mental state and how he copes with trauma.
A popular ambiguous young adult novel is 'The Maze Runner'. The mystery behind the maze and the motives of those who put the characters there are left somewhat ambiguous for a large part of the story. Also, Thomas' role and his true connection to the whole situation are not straightforward. Then there is 'Miss Peregrine's Home for Peculiar Children'. The time - loop concept and the true nature of the peculiars' powers are ambiguous, making readers constantly question what is really going on.
Some might consider 'Speak' by Laurie Halse Anderson as an ambiguous young adult novel. The way the main character Melinda deals with her trauma and how she gradually reveals it to the readers is ambiguous in a sense. It's not always clear what she is thinking or how she will react next. Additionally, 'Looking for Alaska' has its share of ambiguity. The character Alaska's actions and her sudden death leave a lot of room for interpretation, especially regarding her true feelings and intentions.
Chapter 455, "She is Entirely My Weakness", is the clearest early answer because it turns Tai Chi's situation into a concrete plot event. It opens with The marathon-style competition ultimately ended with Shang Shuyue...
Chapter 538, "You Won't Get Angry No Matter What I Ask, Right?", is the clearest early answer because it turns Right's situation into a concrete plot event.
Chapter 424, "He Must Be Very Strong", is the clearest early answer because it turns Ji Yanbai's situation into a concrete plot event. It opens with Shh!" Jiang Yan, who was leading the group, turned around and made a... and closes on Isn't this just exploiting a loophole?!.
Chapter 256, "Bonfire Feast", is the clearest early answer because it turns Buddha Beads's situation into a concrete plot event. The chapter gives readers a real answer by opening on Turning around, Jiang Yan and Zhao Lang found their heads had been...
Chapter 496, "Hot Pot Tonight!", is the clearest early answer because it turns Hot Pot Tonight's situation into a concrete plot event.
Chapter 341, "Whose Child Is Jiang Cheng Really?", is the clearest early answer because it turns Li Ruofang's situation into a concrete plot event.
Chapter 457, ""Back Against the Wall", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 483, "Why Does a Pig Eat M9?!", is the clearest early answer because it turns Lili's situation into a concrete plot event. The chapter turns that into something concrete by moving from Wilderness Survival Day 11, temperature 31 degrees, wind speed...
Chapter 433, "The Young Master Has His Own Ideas", is the clearest early answer because it turns Jiang Zhao Yuan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Since Jiang Yan and his group left, the house had become much colder.
Chapter 83, "Can Actually Carve Flowers?!", is the clearest early answer because it turns Flowers's situation into a concrete plot event. The chapter turns that into something concrete by moving from When they received the task, the three of them were already...