The resource you are looking for is titled " 300 Problems in Special and General Relativity: With Complete Solutions
Are you prepping for an exam, or are you working through a specific textbook like Hartle or Carroll? The resource you are looking for is titled
in 2021. This book is specifically designed as a student's manual or supplementary text for advanced undergraduate or master's level physics courses. Amazon.com Problem 134: Geodesics on a sphere
The text you are referring to is a specific supplementary book titled The text you are referring to is a
Exercises on length contraction, time dilation, and the relativistic Doppler effect.