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What did the “Itsy Bitsy Spider” climb up?
42
In “The Farmer in the Dell,” what did the cat take?
41
What goes up and down, but still remains in the same place?
40
How can you drop a raw egg on the concrete floor without cracking it?
39
What gets wetter and wetter the more it dries?
How many bags of wool did “Baa Baa Black Sheep” have?
38
If there are six apples and you take away four, how many do you have?
How can a man go eight days without sleep?
34
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ভাষা ও ভাষার উৎপত্তি
Plasma Physics (প্লাজমা পদার্থবিদ্যা)
Laser (লেজার)
Quantum materials (কোয়ান্টাম উপকরণ)
Particle physics (কণা পদার্থবিজ্ঞান)
Optics (অপটিক্স এবং ফোটোনিক্স)