Solve the language Puzzles
PLO is a fun, exciting, educational, challenging, puzzling, linguistic competition for students studying in grades 6th to 8th (Juniors) and 9th to 12th (Seniors). This competition helps foster problem solving, computational thinking and appreciation for the linguistic diversity and linguistics in general.
Journey to the International Olympiad
PLO 2026-2027 will have two major selection rounds. Key dates for PLO 2027 Round 1 are listed below.
Round 1 Registration Opens
This is the first selection round for PLO. Registration closes on 31 October 2026. Top participants from this round will be eligible for Round 2.
Round 1 Examination
National-level examination for all registered candidates. The examination will be conducted at designated centres across India.
View Examination Centres →Round 1 Results
Round 1 results are announced! Check your scores and rankings.
Round 2 CAMP
Top participants from Round 1 get to take part in an Invitational Camp in Hyderabad where they learn linguistics and key tips and tricks.
IOL 2027
The top participants from Round 2 will travel to Thailand to represent India at the International Linguistics Olympiad (IOL) 2027, competing with the best minds from around the world.
Let's try one problem.
To get a feel, try this sample problem.
K = outermost green layer
C = next whorl
A = next – the yellow dots, and
G the innermost = orange.
The number of elements in the whorl is subscripted.
To view the full solution, find this problem on the Resources Page