When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Replace the question mark in the picture below.

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

Why Wine Glass Stem is so long?

When it's bad luck to meet a black cat?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?