Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

People make me, save me, change me, raise me. What am I?

How many squares, of any size, can you find on this chessboard which do not contain a Rook?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

How can you take 2 from 5 and leave 4?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?