# Calculate the number 4001

NUMBERMANIA: Calculate the number 4001 using numbers [1, 8, 5, 8, 53, 413] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers:

**19**The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #numbermania

### Doug Mellard: Prophylactics

I remember one point, this older gentleman asked me for some prophylactics, and at that time, my sexual vocabulary wasnt that great, you know. So, Im checking my word bank for the closest thing I have to prophylactics. Closest thing I got -- pterodactyls. I was all confused. I was like, Excuse me, sir, I hate to break it to you, but those things have been extinct for 65 million years.