Can you count the number of triangles in the picture below?

You can see three almost identical images below. Can you spot the odd one out from them?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Keyboard words are not in alphabetical order, Why?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What does the below rebus riddle means?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.