# two envelopes problem

> brain teaser, puzzle, or paradox in logic, probability, and recreational mathematics

**Wikidata**: [Q180191](https://www.wikidata.org/wiki/Q180191)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Two_envelopes_problem)  
**Source**: https://4ort.xyz/entity/two-envelopes-problem


## References

1. Freebase Data Dumps. 2013
2. BabelNet