mind reading

Ask guests to make a number from 2 to 10; multiply it by 9; add up the numbers that make up the resulting two-digit number; subtract 4 (here always turns 5, but it's not the end). Ask to select the alphabet letter corresponding to the received number (obtained by "D").

Next, you need to remember that letter (joke starts here since about 95% guessing Denmark), and finally, the animal on the third letter of the name of the country (most of the guessing rhino); Further, by making intelligent face, and after a pause, I must say: "In Denmark rhino are not found."

This trick fails in 90% of cases, but be ready to fail.