If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Can you find the thief by just looking at the picture below?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What has 13 hearts but no other organs?

How can you tell a raw egg from a hard-boiled egg?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?