Can you find the odd number in the following?
2716, 4135, 5321 and 7145
Can you move 2 matchsticks to form four equal sized squares.
In a picnic session, a footballer was practicing. During his play, he busted lips and ears and broke ribs and thighs. However, he was still able to play a professional match on the very next day.
How can this be possible?
I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?
If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
A father's child, a mother's child, yet no one's son.
Who am I?
I make two people out of one. What am I?
A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.
How will they cross the river?
How can you drop a raw egg from a height onto a concrete floor without cracking it?
I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?
That attorney is my brother, testified the accountant.
But the attorney testified he didn't have a brother.
Who is lying?
In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.