This study investigated whether 2- to 6-year-old children exhibit a response bias to questions pertaining to the results of sharing objects that should attract their interest. An experimenter distributed four objects between herself/himself and a child, equally or unequally (more to the child or more to the experimenter) and asked the child yes-no questions: "Is this okay?" and "Is this bad?" The results indicated that 2- and 3-year-olds exhibited a yes bias in all conditions, 4-year-olds exhibited a yes bias to the equal condition and to the unequal condition with more distributed to the child, and 5-year-olds exhibited a yes bias to both unequal conditions, whereas 6-year-olds did not show any response bias. Young preschoolers exhibited a yes bias regardless of questions and children may become able to say both "yes" and "no" appropriately to questions about object sharing after the age of six.