Which of the following statements are correct?

In the titration of HCl vs NaOH , indicator is phenolphthalein

In the titration of ${\text{KMnO}}_{\text{4}}$ vs  $H_2{C}_2{O}_4$ ,no external indicator is used

In the titration of ${\text{I}}_{\text{2}}$ vs ${\text{Na}}_2{\text{S}}_2{\text{O}}_{\text{3}}$, starch is the indicator

Equivalent weight of Hypo is half of its Molecular weight in the reaction ${\text{I}}_{\text{2}}+{\text{2Na}}_{\text{2}}{\text{S}}_{\text{2}}{\text{O}}_{\text{3}}\to \text{2NaI}+{\text{Na}}_{\text{2}}{\text{S}}_{\text{4}}{\text{O}}_{\text{6}}$