save the children

[mahcaeh]

please could you help -
cryptic towns in england -companion to famous detective (8)
conjunction on top (7)
puzzlers - if 2 becomes 9, 3 becomes 17,5 becomes 33 what does 4 become?
how mant times does digit 3 appear betwwn 1 and 50?
5 dogs can kill 5 rats in 5 mins. how many dogs needed to kill 1oo rats in 1oo mins?
at midnight raining hard. how probable is it that it will be sunny in 72 hrs?
thanks

[another-view]

1 hastings
2 andover

last 0% as it will still be night.

[another-view]

5 dogs.

3,13,23,30,31,32,33,34,35,36,37,38,39,43 = 15 threes. You could have done that yourself surely?

[JUNKMAN]

puzzlers
4 becomes 25
15 (3,13,23,30,31,32,33,34,35,36,37,38,39,43)
5 dogs

[mahcaeh]

thank you junkman