None. All numbers from 1 to 20 can be scored with one dart.
23
I am not sure but i think it is 1 or 0 1/0
It's 103
61 is incorrect. The question asks for the lowest score you cannot get with one dart. It is true that you cannot get 61, but neither can you get 59. Therefore 61 is not the lowest impossible score with one dart. The correct answer is 23. You can obviously score any number from 1 to 20, so we can exclude that range. You can get 21 (3×7) and 22 (2×11), but you cannot score 23 with a single dart.
I will take a wild guess. He scored 47 goals for Spain
47
23. Since you can score any of the numbers 1 through 20, plus you can score in the double (outer) ring, or the triple (inner) ring of any of those numbers. 1 through 20 is obvious, 21 can be scored with a triple 7, and 22 can be sored with a double 11. 23 can't be divided by 2 or 3, and the only other scores possible with a single dart are 25 and 50 for the outer bull and inner bull, respectively. For further details, see: http://en.wikipedia.org/wiki/Darts#Scoring
The maximum from one dart is 60, (a treble 20)
25
1 x 47 and 47 x 1 (47 is a prime number).
Sachin Tendulkar with 47 centuries