The Greek in Mark 6:20 that is translated into English as «perplexed» is translated as

• «his heart was gone» in Tzeltal
• «hard chased» (as in animals in a hunt) in Piro
• «his mind was killing him» in Navajo (Dinė)
• «his stomach rose up» in Farefare
• «he was very irresolute» (i.e. «it was all wrong with him») in Indonesian
• «his heart was very divided» in Javanese (source for this and all above: Bratcher / Nida 1961)
• «confused his head» in Hiligaynon (source: Hiligaynon Back Translation)
• «his heart was agitated» in Uma (source: Uma Back Translation)
• «his thinking was difficult» in Kankanaey (source: Kankanaey Back Translation)

See also Seat of the Mind for traditional views of «ways of knowing, thinking, and feeling» as well as perplexed, perplexed / puzzled, or troubled / perplexed,