In how many ways can the letters of the word DELHI be arranged?

If a+b=15 and a*b=56, find a^2+b^2.

If EARTH is written as FCUXM in a certain code, how is MOON written in that code?

If A is the mother of B, B is the son of C, and C is the brother of D, how is D related to A?

DFH, HJL, LNP, ___, TVX

The student was expelled from the university due to his flagrant violation of the rules and regulations.

Five friends P, Q, R, S, T are sitting in a row. P is left of Q, but right of R. S is right of Q, and T is at extreme left. Who sits in the middle?

Area of a square is equal to the area of a circle with radius 7 cm. Find the side of the square.

Five friends are sitting around a circular table facing the center.

P is between Q and R.

S is to the immediate right of Q.

T is opposite P.

Question: Who is between S and T?

If 1st January 2008 was a Tuesday, then 1st January 2009 was a:

What is the last digit of 7^75?

How many 3-digit numbers can be formed from the digits {1,2,3,4,5} without repetition?

If 8 men can build a wall in 24 days, how many days will 12 men take (same rate)?

How many times between 12:00 noon and 6:00 p.m. do the hour and minute hands of an analog clock coincide?