Starting with 'perigon', drop and add letters to find another word, reshuffling as required. Question 10 will ask you for the link between them.

-1.Starting with PERIGON, and dropping one letter will give you which word, meaning 'someone who states a point of view'?

-2.Dropping one letter from the previous answer will give you which word, with the meaning 'to lie face downwards'?

-3.Lose another letter to discover which word, which can mean the same as 'unlocked'?

-4.Another lost letter, which will give you which word meaning 'a very long time'?

-5.One final lost letter to find which abbreviation for an Executive Order?

-6.Time to start adding now to find which alternative name for the Igbo tribe of Nigeria?

-7.Add another letter to discover the name of which scientist, who gave his name to a particle in physics?

-8.Add another letter to discover which word which means 'to haul with a tackle'?

9.Add a letter to discover which final word, which can mean dull or slow-witted?

-10.What mathematical term links perigon to the final word? This word has other definitions, including a viewpoint.

2. prone

Salut curly, nice puzzle

Merci Gail.

1. opiner

Good Morning, Curly

3. open

4. eon Morning Curly

Morning, good ones.

5. EO Hi Curly

Bernie

Thanks Bernie.

10. angle

6. Ebo

Good ones. Hi Niki.

7. Bose

8.Bouse

Good ones. No.9 is left.