Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.
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Question: Jack Gleeson ( born 20 May 1992 ) is a retired Irish actor , best known for his portrayal of Joffrey Baratheon in the HBO television series Game of Thrones .

Answer: Jack Gleeson


Question: Guru Randhawa is an Indian singer and songwriter from Punjab , India . Randhawa is known for his tracks like `` High Rated Gabru '' , `` Patola '' , `` Raat kamal hai '' and `` Lahore '' . He sang in the 2017 Indian Premier League opening ceremony . He made his Bollywood singing debut in Hindi Medium . He also sang for the film Simran . He composed and sang for films like Hindi Medium , Tumhari Sulu , Dil Juunglee , Sonu Ke Titu Ki Sweety and Blackmail . He is related to singer Zora Randhawa .

Answer: Guru Randhawa


Question: At liquid -- air interfaces , surface tension results from the greater attraction of liquid molecules to each other ( due to cohesion ) than to the molecules in the air ( due to adhesion ) . The net effect is an inward force at its surface that causes the liquid to behave as if its surface were covered with a stretched elastic membrane . Thus , the surface becomes under tension from the imbalanced forces , which is probably where the term `` surface tension '' came from . Because of the relatively high attraction of water molecules for each other through a web of hydrogen bonds , water has a higher surface tension ( 72.8 millinewtons per meter at 20 ° C ) compared to that of most other liquids . Surface tension is an important factor in the phenomenon of capillarity .

Answer:
Surface tension