Is it normal for the other teeth near the extraction site to feel 'funny' or kind of numb afterwards?

Post extraction: It is common for the neighboring teeth to feel a little different or a little tender after an extraction. During the extraction there can be some pressure placed on the tooth next to the one removed. If you are experiencing severe pain, swelling or prolonged bleeding then you should contact the extracting dentist.

Perhaps: Depending on the difficulty of the extraction and the procedure, the surgical site as well as the surrounding teeth will feel different for a few days. See your surgeon if the symptoms persist.

Not unusual: Tooth extraction is a surgical procedure. Pressure is but on the tooth-surrounding bone and on the adjacent teeth. There will be a period of healing of the extraction site and the adjacent tissues. These symptoms should gradually continue to diminish. If symptoms persist, or if there is pain, bleeding, or swelling, contact your treating Dentist or Oral Surgeon for re-evaluation.

Be patient: The area is sensitive and time is needed for healing. The initial healing period usually takes from 1 to 2 weeks. Keep a good oral hygiene.

Yes: Yes, your body and the area can be going through some major healing changes which will feel "funny" or can be described as numb afterwards. If this continues and you still have concerns just see the person that did the extraction for a post-op

Teeth soreness: It is possible for feelings of soreness in teeth adjacent to an extraction site to occur for a short period of time. Often the pressures involved in removing a tooth affect the adjacent teeth making them feel sore or less tight. Usually as the infection in the area decreases, the adjacent teeth return to normal condition and tightness.