What four weights can be used to balance from 1 to 30 pounds?

What has 13 hearts but no other organs?

In a guessing game, five friends had to guess the exact numbers of apples in a covered basket.
Friends guessed 22, 24, 29, 33, and 38, but none of the guesses was correct. The guesses were off by 1, 8, 6, 3, and 8 (in random order).

Can you determine the number of apples in a basket from this information?

Can you name four days which start with the letter 'T'?

What is the next number in the series?

15 29 56 108 208 ?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

What is the last thing you take off before bed?