Which one is thinner: a cheese cube or a tortilla?

Which bread slice is thinner?

Which bread slice is thicker?

Which fruit is thicker?

Which pencil is thicker?

Which tree trunk is thinner?

Which one is thicker: a towel or a blanket?

Which book is thicker?

Which one is thinner: a pancake or a slice of cheese?

Which arrow is thinner?

Which rope is thicker?