PayPal interview questions

Went through a phone interview and was invited in to be interviewed by a design team a week later

This was refferal appling for position. For two position. The first for risk analyst, the second for data scientist. For risk analyst they contact me to ask appropriate time to call, when i proposed they didnt make any appointment for a week untill i write the letter and asked why they didn?? make an apointment. So then they choose time. And i had two telephone interview in one day. So the first was pleasant. It was friendly woman who asked general questions about background and expereince. The second was terrible. It was recruting manager , he missed the time for a half of hour, then started immediately from probalistic tasks. i was dissoppinted cause didnt expected this. So i failed in this tasks. Then he asked my siebel skill level and the difference between left/right join.