Questions

An M.S Excel Workbook is a collection of both Worksheets and Charts.

Polish and Reverse Polish are the notations used in Evaluation of Arithmetic Expressions using prefix and postfix forms

The skul contains the bones like Occipital bone, Frontal bone, Mandible, Temporal bone, Parietal bone. The mandible, or jaw bone, is the only movable bone of the skull, forming the temporomandibular joint with the temporal bone. The lower teeth are rooted into the mandible while the upper teeth are rooted in the two maxillae.

Man's Father is Madhu's Father's Son => Madhu itself. So the Man in the photograph is Madhu's son. 

Teams of the National Aeronautics and Space Administration (NASA) of the United States and the Indian Space Research Organisation (ISRO) would inspect the excavation being carried out at an archaeological site in Haryana’s Fatehabad district to verify claims of it being the oldest civilisation in the world. Archaeologists have recovered artefacts pre-dating the Harappan Civilisation from the site, located in village Kunal in Fatehabad district.