1 In differential geometry, the trace-reversed Ricci tensor is used to express the curvature of a pseudo-Riemannian manifold. What's another name for this geometric object that also occurs in general relativity?

2 What Laotian athlete who competed in the 2004 Summer Olympics in Athens was born on September 24th, 1978?

3 What South Australian village lies about 86 km north-east of Quorn and is located in the mountain range of the same name?

4 What is the name of the non-profit organization that promotes research with classic hallucinogens and psychedelics, to contribute to a greater understanding of the mind and to alleviate suffering?

5 What Indian artist from Pandalam was known for his classical style of painting in the Raja Ravi Varma tradition?

6 In season 1, episode 9c of the American comic animated television series Dexter's Laboratory, the main protagonist Dexter gains fame by saying just 3 French words over and over again. What words exactly?