I am an odd number. Take away a letter and I become even. What number am I?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

How many times do a clock's hands overlap in a day ?

How many times in a given day, minutes and hour clock comes in a straight line ?

Spot 5 differences in two Christmas tree below:

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.