For the following questions answer them individually
Under which of the following conditions, the President can declare a state or Emergency ?
Who among the following Prime Minister did not face the Parliament during his term of office?
4 plates (50 cm $$\times$$ 5 cm) are arranged as show below. Calculate the area of the square space in the middle.
One tap fills up a tank in two hours and the second tap empties it in 3 hours. How long will the tank take to get filled up if both the taps start functioning simultaneously ?