We have two tickets to give away to the opening night of classic musical Seven Brides for Seven Brothers at Dublin's Bord Gáis Energy Theatre on January 27.

The show runs until February 1 and stars Dancing on Ice champion Sam Attwater and Helena Blackman from BBC’s How Do you Solve a Problem Like Maria? in a new production "packed with colourful costumes, fabulous sets, special effects and high-energy performances."

This American frontier musical is packed with 16 classics, including Bless Your Beautiful Hide, A Woman Ought to Know Her Place and Goin’ Courtin’.

Tickets for the show are on sale now, for more information log on to www.bordgaisenergytheatre.ie.

To be in with a chance of winning, send your answer to the following question, along with your name, address and phone number to tencompetitions@rte.ie.

If you add seven plus seven what do you get?

a) 13

b) 14

c) 15

The competition is open until 1pm on Friday, January 17. Prize is non-transferable.

A list of RTÉ competition rules can be viewed here.