Would you expect distributions of these variables to be uniform, unimodal, or bimodal? Symmetric or skewed? Explain

Question:

Would you expect distributions of these variables to be uniform, unimodal, or bimodal? Symmetric or skewed? Explain why.
a) Ages of people at a Little League game.
b) Number of siblings of people in your class.
c) Pulse rates of college-age males.
d) Number of times each face of a die shows in 100 tosses.