what does the below rebus means?

What came first, the chicken or the egg?

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?

Find the next number in the series below.

6 18 270 72090 ?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

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

They are three errirs in this question. Can you find them?

This isn't your average math problem. It requires you to see beyond basic operations and identify the hidden logic that connects the numbers.

18, 46, 94, ?, 52, 61

What seven-letter word has hundreds of letters in it?

The centre of the third figure is empty. What digit should fit inside?