Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

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

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.
Olivia got the drink with the same letter as the one in her first name.
Emma loves mango-juice.
The other two bring some food : chocolates and pizza.
Also Madison is allergic to cheese.

So which ladies bought what ?

What is harder to catch the faster you run?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

I am white when I am dirty, and black when I am clean. What am I?

I am quite hot but become too cold if you remove the first two letters. What am I?

What does it mean?