No, sound does not have measurable mass. Sound is a form of energy that travels through a medium, such as air or water, in the form of pressure waves. While sound does carry energy, it does not have mass. Mass is a property of matter, and sound is a disturbance or vibration transmitted through matter.
As for human thought, it is not currently possible to measure its mass directly. Thoughts are considered to be a product of neural activity in the brain, which involves the transmission of electrical impulses and chemical signaling between neurons. These processes involve energy, but the concept of measuring the mass of thoughts is not applicable in the context of current scientific understanding. The mass of an individual's brain, which is a physical organ, can be measured, but it does not directly correspond to the mass of their thoughts. Thoughts are complex cognitive processes that involve various interconnected neural networks and cannot be easily quantified in terms of mass.