What was the three hardest obstacles that Harry Houdini faced?

1. The Chinese Water Torture Cell Escape. This escape involved Harry Houdini being suspended upside down in a glass tank filled with water. The tank was then locked and Houdini had to escape before he drowned. Houdini was able to escape by contorting his body and slipping through a small opening at the bottom of the tank.

2. The Straitjacket Escape. This escape involved Houdini being strapped into a straitjacket and then hung upside down from a rope. Houdini had to escape from the straitjacket and unlock the rope before he fell to his death. Houdini was able to escape by using his finger nails to pick the locks of the straitjacket.

3. The Buried Alive Escape. This escape involved Houdini being buried alive in a coffin. The coffin was then filled with dirt and Houdini had to escape before he suffocated. Houdini was able to escape by digging a tunnel to the surface.