There are infinite internet intelligence tests (IQ Test), which normally have an accurate result, are organized through many questions. However, there is also a short test with just 3.

**CRT** (The Cognitive Reflection Test) is built by psychologist Shane Frederick and deals with the ability to analyze information slowly and rationally.

Take your time and try to answer the questions. You have the answers in the end, but do not be fooled.

**Question # 1:** We have a stick and a ball. Both cost 110 leks. The stick costs 100 leks more than the ball. How much does the ball cost?

**Question # 2:** If 5 machines needed 5 minutes to produce 5 details, how many minutes would take 100 machines to produce 100 details?

**Question # 3: The** lake is covered with surface plants. Every day, the plants occupy twice the area they occupied 1 day ago. If for 30 days the lake is completely covered, which day is covered up to half?

If you can not find any, do not worry because many of the most popular university students have failed. Practice constantly.

**Answer # 1:** Return to 9-year equations where an unknown is expressed in dependence on the other.

a = stick; b = top

a + b = 110 <-> (b + 10) + b = 110

2b = 110 -> b = 110/2

So the ball costs 50 Lek

**Answer # 2:** If 5 machines produce 5 details for 5 minutes, then 1 machine makes 1 detail for 5 minutes. So 100 machines make 100 details for 5 minutes. So it takes 5 minutes.

**Answer # 3:** On the 29th day the plants will have covered the half of the lake and the next day they will have covered half a dozen. So the whole lake.