Some students pass around a box of candy containing 25 pieces.Kendra took the first piece of candy. Each child takes a piece of candy as the box is passed around. Kendra also gets the last piece and may have more than the first piece. How many children are seated around the table?

So doesn't that mean there is more than one answer.
There could be 24 or less children.

You still haven't given us enough information.

We know that Kendra took the first and last pieces. Therefore, there are at least 24 children at the table. But -- she may have more than the first piece is unclear.