It is not possible to tickle yourself. The cerebellum, a part of the brain, warns the rest of the brain that you are about to tickle yourself. Since your brain knows this, it ignores the resulting sensation.

111,111,111 x 111,111,111 = 12,345,678,987,654,321.

The largest spider ever was the Megarachne which had a diameter of 50 cm. The fossil was found in Argentina.

AMAZING FACTS