For the following questions answer them individually
If ABCD is a Cyclic Quadrilateral ,then the value of $$\cos^2 A - \cos^2 B - \cos^2 C + \cos^2 D$$ is:
Select the option that will correctly fit in the blank space in the given figure series.
Two pipes A and can fill an empty cistern in 18 and 27 hours, respectively. Pipe C can drain the entire cistern in 45 hours when no other pipe is in operation. Initially, when the cistern was empty Pipe A and Pipe C were turned on. After a few hours Pipe A was turned off and Pipe B was turned on instantly. In all, it took 55 hours to fill the cistern. For how many hours was Pipe B turned on?
$$15^{th}$$ February 2018 is a Thursday. On what day will $$18^{th}$$ April 2019 fall?
From the given four figures choose the correct water image of the below figure.
Solve the following:
$$36 - [18 - \left\{14 - (15 - 4 \div 2 \times 2)\right\}]$$
Which Indian state is the largest producer of Soyabean?
If $$x^2 + kx + k = 0$$ has no solution, then the value of k will satisfy: