My teacher has given me an annoying question I need to solve but it seems impossible, "If my three children have ages which add to 21 and multiply to 75, how old are they?"

To the world I am an oyster for it is my pearl. My name is given to the most flamboyant of girls. I travel a lot but not awfully well since I can only fit in Hilbert's hotel. I am always on the move, yet my waistline keeps expanding. Being studied by scholars is quiet demanding. What am I?

One of friend share this pic to me, actually I don't know there it comes from but seems like more interesting to solve. Please check below:

Can anyone help me solve this puzzle? I could not establish a co-relation between the numbers: 13 = 1001 19 = 10013 23 = 100004 A = 1000001 139 = B Find the values of A and B.

This link here shows how many "Who am I?" riddles we already have on this site. Obviously, there are many of them and they're mostly riddles describing an object in some funny way. On checking the riddles, I noticed how similar they are most of the time. Even though some people here seem to di...

The sum of ten, not necessarily different, positive integers is 100. If placed adequately on the vertices of this graph, two of them will be joined by a line if, and only if, they have a common divisor greater than 1 (i.e. they are not relatively prime). What are those ten integers?

The two grids below are essentially equivalent. A specific color belongs to a specific catagory (four solid colors). Exception is the center box with 2 colors. Should be easy to fill out all the boxes with "?"

This is a Travel Log from a travelling man. Words denoted by numbers 0 to 9 A TRAVEL DIARY LOG Today: 3456789 Met my friend 456789 after many years. Owns a shop of home stuff like a 34567. Enjoyed talking with her. Met her last at the 3459 concert. Great place. Nice historic streets with str...

Guess the word hidden with all the images.

My Daughter She always does the right thing (the opposite is true as well; she's a good girl), and she'd be the first to tell you it's never right to jump a fence or steal a car. But it is right to obey traffic signs. Sometimes she picks up things she finds, but I don't worry. Usually it just g...

This one may be my favorite... I tend to linger, unable to stop admiring it... I wonder what that person is thinking down there... Ahh my favorite city... a classic... With summer coming up this brings back great memories... Can't wait to get s'more of these shots... What type of photos ...

Hired by the Council of Magic - Language Barrier at the Circle: After your two successful visits to call upon the aid of the Council of Magic, the Council has called in one of the favors the King of Puzzlington owes them for their help. As your luck would have it, the favor they have requested is...