Solution:

I am number 7 on any phone's number pad.

Solution:

I am word "Introvert"

Solution:

Photocopier Machine

Solution:

HighJacking (High+Jack+King)

Solution:

megalomaniac.

Camel (2, 4, 7, 2, 5 are Eastern beast of burden)
Main (1, 8, 10, 9 are street made famous by Sinclair Lewis)
Ago (11, 3, 6 are past)

Solution:

Empty.

(mpt, emty or mt depending on your interpretation)

Solution:

Error

Solution:

Rendezvous

Solution:

A person who is wearing an analogue watch.

The person will have two hands of his own and three hands will be possessed by the clock (hour hand, minute hand and second hand). If supposedly the watch also have a millisecond hand, the hands will sum up to six.

Solution:

NOWHERE

Explanation:
My present refers to – NOW (The present time)
My second refers to – HERE (The present place)
NOW + HERE = NOWHERE (A lack of place).