If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

What is the riddle which can be asked all day with a different correct answer each time.

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Can you find out the remainder when 3^300 is divided by 5?

What has 88 keys?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

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