What four weights can be used to balance from 1 to 30 pounds?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

What does the below image rebus riddle means ?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Buy me, smell me or deliver me, I do not change.

Who am I?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

What does below Rebus mean ?

esgg sgeg gegs gsge

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED