As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

I add 5 to 9 and get 2. The answer is correct, so what am I?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

What has 88 keys?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

How many triangles are there in the picture below?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)