Boolean expressions, truth tables and gates

Reading rows AB = 00, 01, 10, 11 in order, which output column is Q = ¬(A ∧ B)?

Reading rows AB = 00, 01, 10, 11 in order, which output column is Q = ¬(A ∨ B)?

Reading rows AB = 00, 01, 10, 11 in order, which output column is Q = A ⊻ B?

Reading rows AB = 00, 01, 10, 11 in order, which output column is Q = ¬A ∧ B?

In the truth table for Q = (A ∨ B) ∧ C, on how many of the 8 rows is Q = 1?

In the truth table for Q = A ⊻ (B ∧ C), on how many of the 8 rows is Q = 1?

In the truth table for Q = ¬(A ∧ B) ∨ C, on how many of the 8 rows is Q = 1?

A machine runs (M) only when the guard is closed (G) and exactly one of two start buttons (S, T) is pressed. Which expression is correct?

A security light

A light (L) turns on when it is dark (D) and either motion is sensed (M) or the manual switch (S) is on. It never turns on in daylight.

A NAND gate has both inputs joined to A. What does it output?

How many rows does a truth table need for 4 inputs?