How many times in a day do the hands of a clock coincide with each other?

In a gathering seven members are sitting in a row. 'C' is sitting left to 'B' but on the right to 'D'. 'A' is sitting right of 'B'. 'F' is sitting right of 'E' but left to 'D'. 'H' is sitting left to 'E'. Find the person sitting in the middle.

Find the odd one among the following.

Find the missing letter in the figure: a circle divided into six sectors containing, clockwise from the top-left, ?, B, H, L, J, P (each letter is opposite another: ? opposite L, B opposite J, H opposite P).

Insert the missing number in the grid (rows): 4 | 6 | 13 ; 9 | 8 | 21 ; 5 | 6 | ?

By looking in a mirror it appears that it is 6:30 in the clock. What is the real time?

What will be the angle between the hour hand and minute hand if the clock shows 8:30 pm?

Six students A, B, C, D, E, F are sitting on the ground. A and B belong to Ruby House, while the rest belong to Emerald House. D and F are tall, while others are short. C and D are wearing glasses, while others are not wearing. Which student of Emerald House is tall and wearing g…

Six persons are sitting around a circular table. Ajay is facing Hemant who is sitting to the left of Arvind and right of Sanjay. Suman is to the right of Arvind. Manoj is facing Arvind. If Hemant and Manoj, Arvind and Sanjay mutually exchange their positions, who is now sitting t…