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 next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Solve the mathematical equation in the picture below.

Akbar summoned Birbal out of anger.
He told him that he will have to face death.
He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions.
After hearing Birbal’s statement, Akbar could do nothing but smile.
He gave him 5 gold bars and let him go.

What did Birbal say?

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

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Can you find the key in the picture below?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?