Pretend it’s the weekend, and it’s time to do errands. You have to visit six stores and they’re all at six separate locations. What’s the shortest distance you can travel while visiting all six? Mathematicians call this “traveling salesman problem,” and it can even stump some computers. But for bumblebees, it’s a snap. Researchers at Royal Holloway University in London found that bumblebees fly the shortest route possible between flowers. So far, they’re the only animals known to solve the problem.
credit:http://mentalfloss.com/article/53691/13-fascinating-facts-about-bees

A colony may contain 40,000-60,000 bees during spring & summer.

One pound of honey = 2 million flowers, 55,000 miles, 300 bees

Honeybees have 5 eyes.

Honeybees are the only ones that die after stinging.
credit:
http://www.honeyfoundation.org/category/fun-bee-facts/
Bees can see ultra violet rays. They see the world primarily in purples and blues
Only female bees sting.
credit:http://blog.press.princeton.edu/2014/09/12/10-interesting-facts-about-bees/

Bees store their venom in a sac attached to their stinger and only female bees sting. That is because the stinger, called an ovipositor, is part of the female bee’s reproductive design. A queen bee uses her ovipositor to lay eggs as well as sting. Sterile females, also called worker bees, don’t lay eggs. They just use their ovipositors to sting. 

Bees see all colors except the color red. That and their sense of smell help them find the flowers they need to collect pollen. Not only is pollen a food source for bees, but also some of the pollen is dropped in flight, resulting in cross pollination. The relationship between the plant and the insect is called symbiosis.