1) All at sea 2) At a loss 3) At sea 4) Bamboozled 5) Confused 6) Got 7) Nonplused 8) Nonplussed 9) Orated 10) Up a tree 1) BBC World Service programme 2) Confounded 3) Electioneered 4) Puzzled completely 5) Puzzled for an answer 6) Stuck out 7) Without an answer 
• (imp. & p. p.) of Stump
If the wicketkeeper removes a bail from the wicket with the ball, while the striker is out of his ground but not attempting a run, the striker is out, stumped. The bowler is credited with this wicket. Only the wicketkeeper may perform a stumping: if any other fielder touches the ball, even unintentionally, the batsman is run out, not stumped.