After you subtract 5 from 25, it becomes 20. So, you can only subtract 5 from 25 once before the number changes.

Each child has one brother. This means there are 3 boys in the family and 3 girls, making a total of 6 children. Adding the two parents, the total number of people in the family is 8.

Survivors are not buried.

The letter "M" appears once in the word "minute," twice in the word "moment," and does not appear at all in "a thousand years." This is a wordplay question that tricks you into thinking it’s asking about time.

Roosters do not lay eggs—hens do! This is a trick question that plays on your assumptions.

Both a ton of feathers and a ton of bricks weigh the same, as both are a ton. The difference is in the volume and density, but the weight is identical.

If you take away four apples, you still have those four apples. The question asks how many you have; not how many are left in the bowl. So, you have 4 apples.

If you light one rope at both ends, it will burn in 30 minutes because the burning is faster at both ends. At the same time, light the second rope at one end. When the first rope finishes burning, 30 minutes have passed. At this point, light the other end of the second rope. The second rope will then burn in 15 minutes (since half of it is already burnt), giving you a total of 45 minutes.

All 12 months have at least 28 days. This is a trick question meant to mislead you into thinking that only February has 28 days, but in fact, all months have 28 days.

This is a trick question. A man can go for 8 days without sleep by simply sleeping at night. The question misleads you into thinking that he can't sleep during the day or night.