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

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Can you find the 09 errors in the picture below?

What has many keys but can’t open a single lock?

What's the best place to go shopping in the ocean?

What do you call a fish without an eye?

Find the missing number in the sequence below:

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?