A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

What is full of holes but still holds water?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

When can we add 2 to 11 and get 1 as the correct answer?

What is the end of everything?

I don't get anymore wetter, no matter how much rain falls on me.

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking