Olympiad/HOTS corner

Which of the following statement is correct?

The temperature (in $°C$) difference between Gangtok and Shillong is _____ the temperature difference between Shillong and Mumbai

Which of the following options is not true with respect to given number line?

The following number line shows the temperature in degree celsius ($°C$) at different places (P to T) on a particular day

What is the difference in temperature between the hottest and coldest places as shown on the number line?

Select a pair of integers whose sum is $-51.$

In Shimla, minimum temperature on Tuesday was $25°\mathrm{C}$. On Wednesday, it fell by $3°\mathrm{C}$ and due to rainfall on Thursday, it further fell by $4°\mathrm{C}$. What was the minimum temperature on Thursday?

In the given magic square, if each row, column and diagonal have same sum, then the value of A and B respective, are

A container contains water at temperature $80°C$. After every $10$ minutes, the change in temperature is $-4°C$. After how much time will the temperature of water be $20°C$?