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

Can you find the company name in the pictogram below?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

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 kind of storm is always in a rush?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?