Reasoning

Pattern: ▲, ▲▲, ▲▲▲, ▲▲▲▲. Next has how many?

A–E sit in order. A is before C; B is after D; E is between A and B. Who can be first?

Five talks run Mon–Fri. X is before Z and Y is after X. Which day can X be?

Riya is 11th from top in a class of 36. Rank from bottom?

Riya is 11th from top in a class of 21. Rank from bottom?

Riya is 23th from top in a class of 32. Rank from bottom?

Riya is 9th from top in a class of 33. Rank from bottom?

Riya is 17th from top in a class of 25. Rank from bottom?

Riya is 16th from top in a class of 26. Rank from bottom?

Riya is 16th from top in a class of 35. Rank from bottom?

Riya is 15th from top in a class of 27. Rank from bottom?

Riya is 16th from top in a class of 23. Rank from bottom?

Riya is 17th from top in a class of 34. Rank from bottom?

Riya is 21th from top in a class of 21. Rank from bottom?

Riya is 8th from top in a class of 13. Rank from bottom?

Riya is 9th from top in a class of 12. Rank from bottom?

Riya is 16th from top in a class of 30. Rank from bottom?

Riya is 4th from top in a class of 30. Rank from bottom?

Riya is 9th from top in a class of 20. Rank from bottom?

Riya is 6th from top in a class of 31. Rank from bottom?

Riya is 31th from top in a class of 31. Rank from bottom?

Riya is 12th from top in a class of 30. Rank from bottom?

Riya is 13th from top in a class of 14. Rank from bottom?

Riya is 5th from top in a class of 12. Rank from bottom?

Riya is 8th from top in a class of 28. Rank from bottom?