What's the next in the series? H, Be, F, S, Mn, Kr, In, Gd, Tl, ?
Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?
Can you find the thief by just looking at the picture below?
There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across. How?
If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?
Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
When does a USA Potato change its nationality?
There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes
using four eights (8) and a one (1) and one mathematical symbol , create the number 100
Can you find the odd number in the following five choices? 1) 482636 2) 259807 3) 865195 4) 104739 5) 391744
You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.