If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

Why do we preferably have round manhole covers and not square ones?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

What building has the most stories?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

Next Number in the Series,

5, 16, 49, 104, ?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

What does this rebus riddle mean?