What does this Rebus Picture mean?

Why is a river so rich ?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Find the next number in the series.
1 10 24 43 67 ?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

If you say my name, I will no longer exist. What am I?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?