Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What work can one never finish?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

When it's bad luck to meet a black cat?

You need to arrange three 7 and mathematical symbols to form number 1?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

A man was just doing his job when his suit was torn. Why did he die three minutes later?