Would Adam Sandler get a reference to Cole Spouse and a scuba man doll?
Adam Sandler and Cole Sprouse starred together in "Big Daddy". A prop used throughout "Big Daddy" was a scuba diving action figure that Cole's character called 'Scuba Steve'.
The answer is yes.

Would the tunnels at CERN fit onto the High Speed 1 rails?
High Speed 1 (HS1), legally the Channel Tunnel Rail Link (CTRL), is a 67-mile (108 km) high-speed railway. The CERN collider is contained in a circular tunnel, with a circumference of 26.7 kilometres (16.6 mi). The circumference of a circle is the length of the enclosing boundary.
The answer is yes.

Is latitude required to determine the coordinates of an area?
Longitude is one of the required data points needed for determining coordinates. Latitude is the other angle required to determine coordinates of an area.
The answer is yes.

Would vegans consider chickpeas for a tuna substitute?

Vegans do not eat any animal products, including milk, eggs, meat, and cheese. Vegan alternatives for things like mayo exist. There are vegan recipes for "tuna" online that include chickpeas as the main component.
The answer is yes.