In paragraph 3 of excerpt from double Dutch a celebration of jump rope rhyme and sister hood what does at first tahira was stumped mean

What is the meaning of "at first, Tahira was stumped" in paragraph 3 of the excerpt from "Double Dutch: A Celebration of Jump Rope, Rhyme, and Sisterhood"?

"stumped" means confused or perplexed.

Most often it is used in regards to not knowing the answer to a question.