What has a ring but no finger?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

How many letters are in the alphabet?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

There was a strange boy who was born before his father. How can this be possible?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?