You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

John was piloting a plane behind a car but was never able to overtake it. Why?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

Remove two matchsticks to make the below equation correct.

Move four matchsticks to the below square to form three squares?

A police officer was passing by when he saw a guy hiding. He walked up to him and genially asked, "What is your name?"

"Shut up!" the boy responded.

"Where are your manners?" asked the outraged police officer.

"Up that tree," said the boy discourteously, directing to a neighbouring tree.

You're looking for trouble, aren't you?" said the police officer.

"No, trouble is looking for me!" the boy answered solemnly.

Why is the boy behaving like this?

In the addition below, all digits have been replaced by letters.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?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?