I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

Two men are in a desert. They both have packs on. One of the guys is dead. The guy alive has his pack open, and the guy who is dead has his pack closed. What is in the pack?

What does this mathematical rebus means ?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

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

What work can one never finish?

A spaceship was lost. The detective was given a piece of paper. This was the location of the spaceship! This is what the slip had scribbled on it:
Juice, Umbrella, Potato, Ice, Tomato, Elephant, Rice.

Where is the spaceship?

What number divided by 4 is the same as that number minus 4?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?