The Logic Zone

Clue 1. Dick lives at a higher number than Mr. Spade; neither of these own Bob.

This clue tells us that Dick cannot be called Mr. Spade. We can now put a X in the grid where Dick intersects with Spade.

Dick lives at a higher No. than Mr. Spade, therefore Dick cannot live at No. 1 and Mr. Spade cannot live at No. 3 and we can put X's where these intersect.

Neither owns Bob and so X's can be placed also following the same principal as above.

Clue 2. Toby lives at No. 1

We are now able to place a at the intersection between Toby and No. 1.

This means no other dog can live at No. 1 and Toby cannot be at No. 2 or 3. We can therefore put X's in all these boxes.

Clue 3. Jim Black does not live at No. 3

This tell us Jim's surname is Black and we can place a and X's as before.

Jim does not live at No. 3 and so we can place a X there and also a cross where Black intersects with 3.

Dick has only one space left for a and so he must be called Turnip. We can place a X where Mike intersects with Turnip, meaning Mike must be called Spade and we can place a here.

Spade is not 3 and doesn't own Bob and therefore Mike must be the same. This means Jim owns Bob - place a here. Therefore Jim doesn't own patch or Toby so place X's.

Bob does not live at No. 1 and therefore Jim can't either. Place a X here, which means Jim must live at No. 2. Place a here and X's against Mike and Dick. Dick must therefore live at No. 3 and Mike at No. 1. place here.

Toby & Mike both live at No. 1, so place a here. Place X's for Toby and Dick, and also Mike and Patch. This means Dick must own Patch, so place a here.

This has actually given us all the information we need to answer the puzzle, however we can fill the rest of the grid in from the information given.