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

Bay of Bengal is in which state?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?