Table:
0
A
B
C
D
E
F
1
Category
Type
Attribute
Description
Bubbles
Cancelable
2
Input
input
oninput
Fires when a user enters text in a textbox.
Yes
No
3
User interface
overflowchanged
onoverflowchanged
Fires when the overflow state changes.
No
No
4
User interface
popuphidden
onpopuphidden
Fires to a popup after it has been hidden.
No
No
5
User interface
popuphiding
onpopuphiding
Fires to a popup when it is about to be hidden.
No
No
6
User interface
popupshowing
onpopupshowing
Fires to a popup just before it is popped open.
No
Yes

Questions and formulas:
Question: what's the cancelable with bubbles being yes
Formula: FILTER(F1,E1="Yes")
Formula2: FILTER(F2:F6,E2:E6="Yes")
Level: easy
Question: what's the bubbles with attribute being onpopuphidden
Formula: FILTER(E1,C1="onpopuphidden")
Formula2: FILTER(E2:E6,C2:C6="onpopuphidden")
Level: easy
Question:  how many bubbles with category being input
Formula: ROWS(FILTER(E1,A1="Input"))
Formula2: ROWS(FILTER(E2:E6,A2:A6="Input"))
Level: easy
Question: what's the type with description being fires when the overflow state changes.
Formula: FILTER(B1,D1="Fires when the overflow state changes.")
Formula2: FILTER(B2:B6,D2:D6="Fires when the overflow state changes.")
Level: easy
Question: what's the attribute with cancelable being yes
Formula: FILTER(C1,F1="Yes")
Formula2: FILTER(C2:C6,F2:F6="Yes")
Level: easy