If Ganesh ranks 9th from the top and 38th from the bottom, then how many students are there in the class?

Seven athletes A, B, C, D, E, F and G participate in a race. E is ahead of A but behind F. D is ahead of only two athletes. G is running last. C is running behind only two athletes. F is not the first.

Which athlete is running in the fourth position from behind?

The weight of seven boys B1, B2, B3, B4, B5, B6 and B7 are compared. The weight of B5 is less than only one boy and more than that of B6. The weight of B4 is neither more nor less than B6 but more than B1, B7, B3. Who weighs the most?

The IQ of 7 boys B1, B2, B3, B4, B5, B6 and B7 is tested and the values are compared. B2 has a higher IQ than B6. B5 has the third lowest IQ. B4 has a higher IQ than 6 boys. B3 has an IQ less than B2. B1 has a higher IQ than B2. B7 has the least IQ. Who has the second highest IQ?

Five articles, bat, ball, fan, table and chair, are kept one above the other (not necessarily in the same order). The bat is four places above the fan. The table is between the ball and the chair. The chair is three places below the bat.

Which article is at the second position from the top?